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CVE-2024-21491 Detail

Description

Versions of the package svix before 1.17.0 are vulnerable to Authentication Bypass due to an issue in the verify function where signatures of different lengths are incorrectly compared. An attacker can bypass signature verification by providing a shorter signature that matches the beginning of the actual signature. **Note:** The attacker would need to know a victim uses the Rust library for verification,no easy way to automatically check that; and uses webhooks by a service that uses Svix, and then figure out a way to craft a malicious payload that will actually include all of the correct identifiers needed to trick the receivers to cause actual issues.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/svix/svix-webhooks/commit/958821bd3b956d1436af65f70a0964d4ffb7daf6
https://github.com/svix/svix-webhooks/pull/1190
https://rustsec.org/advisories/RUSTSEC-2024-0010.html
https://security.snyk.io/vuln/SNYK-RUST-SVIX-6230729

Weakness Enumeration

CWE-ID CWE Name Source
CWE-288 Authentication Bypass Using an Alternate Path or Channel Snyk  

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-21491
NVD Published Date:
02/13/2024
NVD Last Modified:
03/06/2024
Source:
Snyk