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Gurock TestRail Application files.md5 Exposure

ID: CVE-2021-40875

Severity: high

Author: oscarintherocks

Tags: cve2021,cve,exposure,gurock,testrail

Description

Section titled “Description”

Improper access control in Gurock TestRail versions < 7.2.0.3014 resulted in sensitive information exposure. A threat actor can access the /files.md5 file on the client side of a Gurock TestRail application, disclosing a full list of application files and the corresponding file paths which can then be tested, and in some cases result in the disclosure of hardcoded credentials, API keys, or other sensitive data.

YAML Source

Section titled “YAML Source”
id: CVE-2021-40875


info:
  name: Gurock TestRail Application files.md5 Exposure
  author: oscarintherocks
  severity: high
  description: Improper access control in Gurock TestRail versions < 7.2.0.3014 resulted in sensitive information exposure. A threat actor can access the /files.md5 file on the client side of a Gurock TestRail application, disclosing a full list of application files and the corresponding file paths which can then be tested, and in some cases result in the disclosure of hardcoded credentials, API keys, or other sensitive data.
  impact: |
    An attacker could use the exposed files.md5 to gain insight into the application's file structure and potentially identify vulnerabilities or sensitive information.
  remediation: |
    Securely restrict access to the files.md5 file and ensure that it is not accessible to unauthorized users.
  reference:
    - htttps://github.com/SakuraSamuraii/derailed
    - https://johnjhacking.com/blog/cve-2021-40875/
    - https://www.gurock.com/testrail/tour/enterprise-edition
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40875
    - https://github.com/SakuraSamuraii/derailed
  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-2021-40875
    cwe-id: CWE-425
    epss-score: 0.25891
    epss-percentile: 0.96608
    cpe: cpe:2.3:a:gurock:testrail:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: gurock
    product: testrail
    shodan-query:
      - http.html:"TestRail"
      - http.html:"testrail"
    fofa-query: body="testrail"
  tags: cve2021,cve,exposure,gurock,testrail


http:
  - method: GET
    path:
      - "{{BaseURL}}/files.md5"
      - "{{BaseURL}}/testrail/files.md5"


    stop-at-first-match: true
    max-size: 1000 # Define response size in bytes to read from server.


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "app/arguments/admin"


      - type: status
        status:
          - 200
# digest: 4a0a004730450221009b61868c6b989e4b59bf837510bd288412ba0cdb646dd4f4b4f53646ebd8394502205c96b390f04826238c40968ca9360305d2206228e9edb0fcbd01b04ef128ccbb:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “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.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-40875.yaml"

View on Github