Horizon Alert
Summary of the vulnerability and why it matters
An authentication bypass vulnerability in CodeChecker allows unauthorized users to gain elevated privileges by manipulating URLs. This means an attacker could potentially assign any permission to any user, granting them access they shouldn't have.
- It impacts a developer tool.
- Could allow unauthorized control.
- Reachable from the internet.
Attack Path
How an attacker could exploit the issue
An unauthenticated attacker can exploit this by crafting a specific URL that bypasses authentication. This allows them to assign any permission level to any user within the CodeChecker system, effectively granting them administrative control.
- No authentication required.
- Target: Authentication endpoint.
- Arbitrary permission assignment.
Live Threat
Current exploitation, exposure, and threat context
This authentication bypass vulnerability in CodeChecker allows for arbitrary permission assignment to any user, which is a severe risk for any system handling sensitive code analysis data. While the vulnerability exists, its exploitation is likely limited to environments where CodeChecker is actively deployed and accessible. Attackers would need to specifically target organizations using this tool, making it less of a widespread, opportunistic threat.
- Authentication bypass is attractive.
- Exploitation requires specific targeting.
- Public exploit code is not readily available.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Prioritize immediate containment and investigation of CodeChecker instances due to a critical authentication bypass vulnerability. Focus on identifying any affected users or systems that may have had their permissions altered.
- Block network access to CodeChecker.
- Audit user permissions and reset if compromised.
- Upgrade CodeChecker to version 6.27.4 or later.
