coveralls-configuration-file-exposure: Coveralls Configuration File Exposure

2026-05-09 coveralls PoC Public

Description

Detected a Coveralls configuration file (.coveralls.yml) on the target. This file could have exposed a sensitive repo_token, allowing an attacker to submit fake data, view private coverage details, or impersonate the project.

PoC

id: coveralls-configuration-file-exposure

info:
  name: Coveralls Configuration File Exposure
  author: 0x_Akoko
  severity: medium
  description: |
   Detected a Coveralls configuration file (.coveralls.yml) on the target. This file could have exposed a sensitive repo_token, allowing an attacker to submit fake data, view private coverage details, or impersonate the project.
  reference:
    - https://docs.coveralls.io/ci-services
    - https://coveralls-python.readthedocs.io/en/latest/usage/configuration.html
  classification:
    cwe-id: CWE-538
  metadata:
    verified: true
    max-request: 1
    shodan-query: html:".coveralls.yml"
  tags: exposure,config,coveralls,token,misconfig

http:
  - method: GET
    path:
      - "{{BaseURL}}/.coveralls.yml"

    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - "status_code == 200"
          - "len(body) > 30"
          - "contains_any(content_type, 'application/octet-stream', 'text/plain')"
        condition: and

      - type: word
        part: body
        words:
          - "repo_token"
          - "service_name"
        condition: or

      - type: word
        part: response
        words:
          - "MongoDB over HTTP on the native"
          - "application/javascript"
          - "application/x-javascript"
          - "application/json"
          - "application/xml"
          - "text/xml"
          - "<html"
          - "<!doctype"
          - "<script"
          - "<meta"
          - "image/"
          - "Response xmlns"
        negative: true
# digest: 490a0046304402201311ebe9d74b819eb829078585ada0a0c51360d45a73b240c2215a4baba0142d02205bda2a8ff291c59f602d1b044e732eda9bc6a471b5bfa3ef43a2b11436bf257f:922c64590222798bb761d5b6d8e72950

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References

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