GoCD API authentication of user access tokens subject to timing attack during comparison
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-208.
Summary
GoCD is a continuous delivery server. GoCD helps you automate and streamline the build-test-release cycle for continuous delivery of your product. GoCD versions from 19.2.0 to 19.10.0 (inclusive) are subject to a timing attack in validation of access tokens due to use of regular string comparison for validation of the token rather than a constant time algorithm. This could allow a brute force attack on GoCD server API calls to observe timing differences in validations in order to guess an access token generated by a user for API access. This issue is fixed in GoCD version 19.11.0. As a workaround, users can apply rate limiting or insert random delays to API calls made to GoCD Server via a reverse proxy or other fronting web server. Another workaround, users may disallow use of access tokens by users by having an administrator revoke all access tokens through the "Access Token Management" admin function.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA gocd (gocd) Fixed in 19.11.0
Timeline
- 2026-10-02 Threatist record created from CVE-2022-39308
References
More Gocd vulnerabilities
- TI-2021-19282 An issue was discovered in ThoughtWorks GoCD before 21.3.0. CVSS 3.1HIGH 7.5
- TI-2021-19285 An issue was discovered in ThoughtWorks GoCD before 21.3.0. CVSS 3.1CRITICAL 9.8
- TI-2021-20193 Adding a new pipeline in GoCD server version 21.3.0 has a functionality that could be… CVSS 3.1CRITICAL 9.8
- TI-2022-18687 Compromised agents may be able to execute remote code on GoCD Server CVSS 3.1CRITICAL 9.1
- TI-2022-11727 Command Injection/Argument Injection in GoCD CVSS 3.1HIGH 8.8
- TI-2024-37281 GoCD vulnerable to admin privilege escalation by a malicious internal/existing authenticated user CVSS 4.0CRITICAL 9.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences