Improper Verification of Cryptographic Signature Affecting browserify-sign package, versions >=2.6.0 <4.2.2
Snyk CVSS
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Test your applications- Snyk ID SNYK-JS-BROWSERIFYSIGN-6037026
- published 27 Oct 2023
- disclosed 26 Oct 2023
- credit Bing Shi
Introduced: 26 Oct 2023
CVE-2023-46234 Open this link in a new tabHow to fix?
Upgrade browserify-sign to version 4.2.2 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the dsaVerify function. An attacker can construct signatures that can be successfully verified by any public key, leading to a signature forgery attack. This is achieved by exploiting an upper bound check issue in the checkValue function, which incorrectly checks the upper bound of the passed parameters.
Note: This vulnerability affects all places in the project that involve DSA verification of user-input signatures.