CVE-2023-34459

CVSS Score of 10 (low)

Details

Published Jun 16, 2023
Updated: Jun 26, 2023
CWE ID 354

Summary

CVE-2023-34459 is a vulnerability in OpenZeppelin Contracts library versions 4.7.0 to 4.9.2 that allows the forging of a valid multiproof for an arbitrary set of leaves when certain functions are used. The vulnerability occurs when a merkle tree processed by the contract includes a node with a value of 0 at depth 1. This can happen unintentionally for balanced trees with 3 or fewer leaves if the leaves are not hashed, or deliberately if a malicious tree builder includes such a node. Affected products include various versions of OpenZeppelin Contracts and related libraries. To remediate the vulnerability, contracts should avoid using multiproofs with unhashed leaves and instead use single-leaf proving or multiproofs with known trees that have hashed leaves. The potential danger to organizations is rated as medium, with high integrity impact and no confidentiality impact, according to the National Vulnerability Database (NVD) rating.

Prevent cyber attacks with Recorded Future by prioritizing and patching critical vulnerabilities being exploited by threat actors targeting your industry. Book your demo to learn more.

Share

Prioritize, Pinpoint, and Act to Prevent Vulnerability Exploits with Recorded Future

Note: This is just a basic overview providing quick insights into CVE-2023-34459 information. Gain full access to comprehensive CVE data, third party vulnerabilities, compromised credentials and more with Recorded Future
  • Gain complete coverage of your cyber, third party, and physical attack surface
  • Proactively mitigate threats before they turn into costly attacks
  • Make fast, effective, data-driven decisions

Book your demo

Sign in

Back to Vulnerability Database