Cockpit CMS 2.14.1 contains an observable timing discrepancy vulnerability that allows unauthenticated attackers to enumerate accounts due to an incomplete timing fix in /auth/check. Attackers can post login attempts and measure response times, since existing accounts incur two bcrypt operations versus one, revealing valid usernames and email addresses.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/Cockpit-HQ/Cockpit
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/blob/2.14.1/modules/App/Controller/Auth.p…
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/blob/2.14.1/modules/App/Helper/Auth.php
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/commit/5d65ae7b63a261a63e8809e5fba857ef3e…
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/issues/328
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/cockpit-cms-2.14.1-account-enumeration-via…
disclosure@vulncheck.com