JetBrains TeamCity - Registration Enabled

ID: teamcity-registration-enabled

Severity: high

Author: Ph33r

Tags: misconfig,auth-bypass,teamcity,jetbrains,intrusive

Description

JetBrains TeamCity allows all visitors to register due to a misconfiguration.

YAML Source

id: teamcity-registration-enabled

info:
  name: JetBrains TeamCity - Registration Enabled
  author: Ph33r
  severity: high
  description: |
    JetBrains TeamCity allows all visitors to register due to a misconfiguration.
  reference:
    - https://ph33r.medium.com/misconfig-in-teamcity-panel-lead-to-auth-bypass-in-apache-org-0day-146f6a1a4e2b
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 7.3
    cwe-id: CWE-200
    cpe: cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    shodan-query: http.component:"TeamCity"
    product: teamcity
    vendor: jetbrains
  tags: misconfig,auth-bypass,teamcity,jetbrains,intrusive

http:
  - raw:
      - |
        GET /registerUser.html?init=1 HTTP/1.1
        Host: {{Hostname}}

    host-redirects: true
    max-redirects: 2
    matchers:
      - type: word
        words:
          - '<title>Register a New User Account ? TeamCity</title>'
# digest: 4a0a00473045022100af5a1e2d71bc65a101ace7559742dc9ef7e715700bc93b385d9c8661b44cffea022013b64ba03f2f812f60cafb53675ee26037abc526a94b3a652e3f6ff89d10d9c1:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "http/misconfiguration/teamcity/teamcity-registration-enabled.yaml"

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