CVE-2021-39167

OpenZepplin is a library for smart contract development. In affected versions a vulnerability in TimelockController allowed an actor with the executor role to escalate privileges. Further details about the vulnerability will be disclosed at a later date. As a workaround revoke the executor role from accounts not strictly under the team's control. We recommend revoking all executors that are not also proposers. When applying this mitigation, ensure there is at least one proposer and executor remaining.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md#431	Patch Release Notes Third Party Advisory
https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-fg47-3c2x-m2wr	Third Party Advisory
https://github.com/OpenZeppelin/openzeppelin-contracts/commit/cec4f2ef57495d8b1742d62846da212515d99dd5	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openzeppelin:contracts::::::node.js::*
	cpe:2.3:a:openzeppelin:contracts::::::node.js::*

Information

Published : 2021-08-26 17:15

Updated : 2021-09-01 11:10

NVD link : CVE-2021-39167

Mitre link : CVE-2021-39167

JSON object : View

CWE

CWE-269

Improper Privilege Management

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Products Affected

openzeppelin

contracts

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