CVE-2023-23928
Assigner: GitHub_M
Published: 2023-02-01T00:59:38.475Z
State: PUBLISHED
title: reason-jose ignores signature checks
problemTypes: descriptions: cweId: CWE-347
description: CWE-347: Improper Verification of Cryptographic Signature
type: CWE
metrics: cvssV3_1: attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.9
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
version: 3.1
affected: vendor: ulrikstrid
product: reason-jose
versions: version: < 0.8.2
status: affected
descriptions: value: reason-jose is a JOSE implementation in ReasonML and OCaml.`Jose.Jws.validate` does not check HS256 signatures. This allows tampering of JWS header and payload data if the service does not perform additional checks. Such tampering could expose applications using reason-jose to authorization bypass. Applications relying on JWS claims assertion to enforce security boundaries may be vulnerable to privilege escalation. This issue has been patched in version 0.8.2.
source: advisory: GHSA-7jj9-6qwv-wpm7
discovery: UNKNOWN