CVEvulnerability
CVE-2017-18239
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2018-03-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Description
A time-sensitive equality check on the JWT signature in the JsonWebToken.validate method in main/scala/authentikat/jwt/JsonWebToken.scala in authentikat-jwt (aka com.jason-goodwin/authentikat-jwt) version 0.4.5 and earlier allows the supplier of a JWT token to guess bit after bit of the signature by repeating validation requests.
Affected configurations
• authentikat-jwt project authentikat-jwt (<= 0.4.5)
References
- https://github.com/jasongoodwin/authentikat-jwt/commit/2d2fa0d40ac8f2f7aa7e9b070fa1a25eee082cb0 Patch, Third Party Advisory
- https://github.com/jasongoodwin/authentikat-jwt/issues/12 Issue Tracking, Third Party Advisory
- https://github.com/jasongoodwin/authentikat-jwt/pull/36 Issue Tracking, Third Party Advisory
- https://github.com/jasongoodwin/authentikat-jwt/commit/2d2fa0d40ac8f2f7aa7e9b070fa1a25eee082cb0 Patch, Third Party Advisory
- https://github.com/jasongoodwin/authentikat-jwt/issues/12 Issue Tracking, Third Party Advisory
- https://github.com/jasongoodwin/authentikat-jwt/pull/36 Issue Tracking, Third Party Advisory