id: CVE-2021-21972

info:
  name: VMware vSphere Client (HTML5) - Remote Code Execution
  author: dwisiswant0
  severity: critical
  description: VMware vCenter vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).
  reference:
    - https://swarm.ptsecurity.com/unauth-rce-vmware/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21972
    - https://www.vmware.com/security/advisories/VMSA-2021-0002.html
    - http://packetstormsecurity.com/files/161590/VMware-vCenter-Server-7.0-Arbitrary-File-Upload.html
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-21972
    cwe-id: CWE-269
  tags: cve2021,vmware,rce,vcenter,kev,packetstorm,cve

requests:
  - method: GET
    path:
      - "{{BaseURL}}/ui/vropspluginui/rest/services/getstatus"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "VSPHERE-UI-JSESSIONID"
        part: header
        condition: and
      - type: regex
        regex:
          - "(Install|Config) Final Progress"
        part: body

# Enhanced by mp on 2022/05/05