CVE-2020-3187: Cisco Adaptive Security Appliance Software/Cisco Firepower Threat Defense - Directory Traversal

2025-08-01 Cisco Adaptive Security Appliance Software PoC Public

Description

Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software are susceptible to directory traversal vulnerabilities that could allow an unauthenticated, remote attacker to obtain read and delete access to sensitive files on a targeted system.

PoC

id: CVE-2020-3187

info:
  name: Cisco Adaptive Security Appliance Software/Cisco Firepower Threat Defense - Directory Traversal
  author: KareemSe1im
  severity: critical
  description: Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software are susceptible to directory traversal vulnerabilities that could allow an unauthenticated, remote attacker to obtain read and delete access to sensitive files on a targeted system.
  impact: |
    An attacker can exploit this vulnerability to read arbitrary files on the affected system, potentially leading to unauthorized access or sensitive information disclosure.
  remediation: |
    Apply the necessary security patches or updates provided by Cisco to mitigate the vulnerability.
  reference:
    - https://twitter.com/aboul3la/status/1286809567989575685
    - http://packetstormsecurity.com/files/158648/Cisco-Adaptive-Security-Appliance-Software-9.7-Arbitrary-File-Deletion.html
    - https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-path-JE3azWw43
    - https://nvd.nist.gov/vuln/detail/CVE-2020-3187
    - https://github.com/Threekiii/Awesome-POC
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2020-3187
    cwe-id: CWE-22
    epss-score: 0.96595
    epss-percentile: 0.9988
    cpe: cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: cisco
    product: firepower_threat_defense
  tags: cve,cve2020,cisco,packetstorm,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/+CSCOE+/session_password.html"

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - webvpn
          - Webvpn

      - type: status
        status:
          - 200
# digest: 490a004630440220423fa7998e16c14cc72c22aeb4124a0b2d79cddce085843778a94794a091b7cd022024eab40645ef38695af5dd5c7e3a3544398cdb255ab96b4fa5ebf65488e649f5:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-3187.yaml

References

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