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Advisories

Kubero 3.0.0 through 3.1.1 Authentication Bypass via Hardcoded JWT Secret

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Severity
critical
Date
Affecting

  • kubero >= 3.0.0, <= 3.1.1

CWE
  • CWE-321 Use of Hard-coded Cryptographic Key
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
28Hus
Description
Kubero 3.0.0 through 3.1.1 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to forge administrative JWTs by using a hardcoded fallback signing secret when JWT_SECRET is unset. Attackers can sign tokens with arbitrary role, userGroups and permissions claims, which JwtStrategy.validate() trusts without a database lookup, to take control of pipelines, applications, users and API tokens.

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