Improper Verification of Cryptographic Signature Affecting xmidt-org/cjwt package, versions [,2.3.0)
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of concept
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- published20 Dec 2024
- disclosed19 Dec 2024
- creditLouis Nyffenegger
Introduced: 19 Dec 2024
NewCVE-2024-54150 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade xmidt-org/cjwt to version 2.3.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature due to the improper verification of the signature type used during the token validation process. An attacker can gain unauthorized access by crafting a token with a mismatched alg field, leading the server to use an incorrect verification method, such as treating a public key as an HMAC secret.