CVE-2024-45304: contracts — Fix

Description

Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup. This vulnerability can lead to unauthorized ownership transfer, contrary to the original owner's intention of leaving the contract without an owner. It introduces a security risk where an unintended party (pending owner) can gain control of the contract after the original owner has renounced ownership. This could also be used by a malicious owner to simulate leaving a contract without an owner, to later regain ownership by previously having proposed himself as a pending owner. This issue has been addressed in release version 0.16.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness Type (CWE)

CWE-670 CWE-670

Affected Products

Vendor	Product	Versions
openzeppelin	contracts	< 0.16.0

References

Advisories & Patches

https://github.com/OpenZeppelin/cairo-contracts/commit/ef87d7847980e0cf83f4b7f3ff23e6590fb643ec https://github.com/OpenZeppelin/cairo-contracts/security/advisories/GHSA-w2px-25pm-2cf9

Other References

https://github.com/OpenZeppelin/cairo-contracts/releases/tag/v0.16.0

Frequently Asked Questions

What is CVE-2024-45304? +

Cairo-Contracts are OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup. This vulnerability can lead to unauthorized ownership transfer, contrary to the original owner's intention of leaving the contract without an owner. It introduces a security risk where an unintended party (pending owner) can gain control of the contract after the original owner has renounced ownership. This could also be used by a malicious owner to simulate leaving a contract without an owner, to later regain ownership by previously having proposed himself as a pending owner. This issue has been addressed in release version 0.16.0. All users are advised to upgrade. There are no known workarounds for this vulnerability. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-45304? +

CVE-2024-45304 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-45304? +

CVE-2024-45304 affects products from openzeppelin, specifically: contracts. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-45304? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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