Vulnerability in Authentikat-Jwt Project
CVE-2017-18239
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.
EPSS: 0.020 (78.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Authentikat-jwt_project Authentikat-jwt
- N/a — versions n/a
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2017-18239?
- CVE-2017-18239 is a critical-severity vulnerability in Authentikat-Jwt Project. CVSS score: 9.8/10. Published 2018-03-18.
- How severe is CVE-2017-18239?
- Critical severity. CVSS v3 base score is 9.8 out of 10.