Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.21, the /api/users/{id}/password endpoint accepts a cross-site request using the authenticated user's semaphore session cookie without CSRF protection or current-password confirmation, allowing an unauthenticated attacker to change an administrator's or another user's password after user interaction. This issue is fixed in version 2.18.21.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/semaphoreui/semaphore/commit/2d6e2e3eb10e8bf688e2ab59609b909…
security-advisories@github.com
https://github.com/semaphoreui/semaphore/commit/c59c3dc9035badcbf0609c7d35679c0…
security-advisories@github.com
https://github.com/semaphoreui/semaphore/releases/tag/v2.18.21
security-advisories@github.com
https://github.com/semaphoreui/semaphore/security/advisories/GHSA-8cj9-r88m-8945
security-advisories@github.com