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CVE-2023-35941

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CVE-2023-35941

Published: Jul 25, 2023

Modified: Oct 24, 2024

PUBLISHED

CVSS v3.1

8.6

HIGH

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in which HMAC payload can be always valid in OAuth2 filter's check. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, avoid wildcards/prefix domain wildcards in the host's domain configuration.

VendorProductVersions

envoyproxy

envoy

affected
>= 1.26.0, < 1.26.4
affected
>= 1.25.0, < 1.25.9
affected
>= 1.24.0, < 1.24.10
affected
< 1.23.12

Weaknesses (CWE)

CWE-116

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

Low

References

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