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GitHub Advisory DatabaseGHSA-C8V6-786G-VJX6

HistoryFeb 29, 2024 - 3:33 a.m.

json-jwt allows bypass of identity checks via a sign/encryption confusion attack

2024-02-2903:33:14

GitHub Advisory Database

github.com

json-jwt

gem

vulnerability

bypass

identity checks

sign

encryption

confusion attack

jwe

decode

software

ruby

6.3 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

8.4%

JSON

The json-jwt (aka JSON::JWT) gem 1.16.x before 1.16.6, 1.15.x before 1.15.3.1 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.

CPENameOperatorVersion
json-jwtlt1.15.3.1
json-jwtlt1.16.6

CPE	Name	Operator	Version
	json-jwt	lt	1.15.3.1
	json-jwt	lt	1.16.6

References

github.com/advisories/GHSA-c8v6-786g-vjx6

github.com/nov/json-jwt/commit/593ea8bcaf2629048bad8c036191f2da0a2e713c

github.com/nov/json-jwt/commit/9c4d842a9465bd7960570ca326c3de79b4abc9d0

github.com/nov/json-jwt/issues/120

github.com/nov/json-jwt/issues/121

github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.md

github.com/rubysec/ruby-advisory-db/blob/master/gems/json-jwt/CVE-2023-51774.yml

nvd.nist.gov/vuln/detail/CVE-2023-51774