CVE-2024-21491

CVSS 3.1 Score 5.9 of 10 (medium)

Details

Published Feb 13, 2024
Updated: Mar 6, 2024
CWE ID 288

Summary

CVE-2024-21491 is a vulnerability affecting versions of the Rust library package svix prior to 1.17.0. The issue lies in the 'verify' function, which incorrectly compares signatures of different lengths. An attacker can exploit this flaw by providing a shorter signature that matches the beginning of the actual signature, thus bypassing authentication. The attacker must have knowledge of a victim using the Svix library for verification and a service that utilizes webhooks. No easy method exists for automatic detection of such targets, and the attacker must craft a malicious payload to exploit the vulnerability successfully.

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