Kener 3.0.0 before 4.1.10 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge session tokens by using the hardcoded DUMMY_SECRET fallback key. When KENER_SECRET_KEY is empty or unset, attackers knowing an administrator email can sign a kener-user cookie to access /manage/api with full administrative privileges or forge password-reset tokens.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
rajnandan1:kener
References 6
https://github.com/rajnandan1/kener/issues/871
GitHub Issue #871
https://github.com/rajnandan1/kener
NVD
https://github.com/rajnandan1/kener/commit/ff636483544c926eab5b5e3e26b811c0f52b…
NVD
https://github.com/rajnandan1/kener/releases/tag/v4.1.10
kener v4.1.10 Release Notes
https://github.com/rajnandan1/kener/blob/v4.1.9/src/lib/server/controllers/comm…
NVD
https://www.vulncheck.com/advisories/kener-3.0.0-before-4.1.10-authentication-b…
VulnCheck Advisory: Kener 3.0.0 before 4.1.10 Authentication Bypass via Hardcoded Fallback JWT Secret