PT-2023-24758 · Openzeppelin · Openzeppelin Contracts

Joaquin Pereyra + 1 · Published 2023-06-07 · Updated 2023-06-15 · CVE-2023-34234

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions OpenZeppelin Contracts versions 4.3.0 through 4.9.0

Description The issue allows an attacker to become the proposer and gain the ability to cancel a proposal by frontrunning its creation. This can be done repeatedly to prevent a proposal from being proposed. The estimated number of potentially affected devices is not provided.

Recommendations For versions 4.3.0 through 4.9.0, upgrade to version 4.9.1 to patch the issue by introducing opt-in frontrunning protection. For users unable to upgrade, submit the proposal creation transaction to an endpoint with frontrunning protection as a workaround.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2023-34234

GHSA-5H3X-9WVQ-W4M2

Affected Products

Openzeppelin Contracts

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34234.json · Exploit
• https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-5h3x-9wvq-w4m2 · Vendor Advisory
• https://github.com/OpenZeppelin/openzeppelin-contracts/commit/d9474327a492f9f310f31bc53f38dbea56ed9a57 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-34234 · Security Note
• https://osv.dev/vulnerability/GHSA-5h3x-9wvq-w4m2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-34234 · Vendor Advisory
• https://github.com/OpenZeppelin/openzeppelin-contracts · Note
• https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.9.1 · Note
• https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/commit/66f390fa516b550838e2c2f65132b5bc2afe1ced · Note
• https://t.me/cibsecurity/65047 · Telegram Post
• https://t.me/cvenotify/51963 · Telegram Post