Timing Attack Affecting json-jwt package, versions <0.6.1
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Test your applications- Snyk ID SNYK-RUBY-JSONJWT-20385
- published 5 Jul 2017
- disclosed 18 Feb 2014
- credit Stephane Bellity
How to fix?
Upgrade json-jwt to version 0.6.1 or higher.
Overview
json-jwt is JSON Web Token and its family (JSON Web Signature, JSON Web Encryption and JSON Web Key) in Ruby.
Affected versions of the package are vulnerable to Timing Attacks due to not comparing the HMAC hashes in constant time. A malicious user could guess the valid HMAC hash during the comparison time with an algorithm.
References
CVSS Scores
version 3.1