id: vsftpd-backdoor

info:
  name: VSFTPD 2.3.4 - Backdoor Command Execution
  author: pussycat0x
  severity: critical
  description: VSFTPD 2.3.4 contains a backdoor command execution vulnerability.
  reference:
    - https://www.rapid7.com/db/modules/exploit/unix/ftp/vsftpd_234_backdoor/
  remediation: This backdoor was removed on July 3rd, 2011.
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cwe-id: CWE-78
  metadata:
    max-request: 1
  tags: network,vsftpd,ftp,backdoor

tcp:
  - inputs:
      - data: "USER anonymous\r\nPASS anonymous\r\n"

    host:
      - "{{Hostname}}"
    port: 21
    matchers:
      - type: word
        words:
          - "vsFTPd 2.3.4"
# digest: 4b0a0048304602210082cca7986964778fcfc6983bce770fc1ff185c12808568a3954ea131adb11058022100a9ff3ff8b949e7454f4b4879ed7f88d1ff44af3cd4e098424fd42a3821a85af4:922c64590222798bb761d5b6d8e72950