OpenZeppelin Contracts prior 4.9.1 authorization

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in OpenZeppelin Contracts. The impacted element is an unknown function. Executing a manipulation can lead to authorization. This vulnerability is registered as CVE-2023-34234. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in OpenZeppelin Contracts. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect availability. CVE summarizes:

OpenZeppelin Contracts is a library for smart contract development. By frontrunning the creation of a proposal, an attacker can become the proposer and gain the ability to cancel it. The attacker can do this repeatedly to try to prevent a proposal from being proposed at all. This impacts the `Governor` contract in v4.9.0 only, and the `GovernorCompatibilityBravo` contract since v4.3.0. This problem has been patched in 4.9.1 by introducing opt-in frontrunning protection. Users are advised to upgrade. Users unable to upgrade may submit the proposal creation transaction to an endpoint with frontrunning protection as a workaround.

The weakness was published 06/07/2023 as GHSA-5h3x-9wvq-w4m2. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-34234 since 05/31/2023. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.9.1 eliminates this vulnerability. Applying the patch d9474327a492f9f310f31bc53f38dbea56ed9a57 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Contracts 4.9.1
Patch: d9474327a492f9f310f31bc53f38dbea56ed9a57

Timelineinfo

05/31/2023 🔍
06/07/2023 +7 days 🔍
06/07/2023 +0 days 🔍
06/07/2023 +0 days 🔍

Sourcesinfo

Advisory: GHSA-5h3x-9wvq-w4m2
Status: Confirmed

CVE: CVE-2023-34234 (🔍)
GCVE (CVE): GCVE-0-2023-34234
GCVE (VulDB): GCVE-100-231040

Entryinfo

Created: 06/07/2023 20:57
Changes: 06/07/2023 20:57 (50)
Complete: 🔍
Cache ID: 216::103

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