CVE-2022-29226

critical

Description

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 the OAuth filter implementation does not include a mechanism for validating access tokens, so by design when the HMAC signed cookie is missing a full authentication flow should be triggered. However, the current implementation assumes that access tokens are always validated thus allowing access in the presence of any access token attached to the request. Users are advised to upgrade. There is no known workaround for this issue.

References

https://github.com/envoyproxy/envoy/commit/7ffda4e809dec74449ebc330cebb9d2f4ab61360

https://github.com/envoyproxy/envoy/security/advisories/GHSA-h45c-2f94-prxh

Details

Source: MITRE

Published: 2022-06-09

Updated: 2022-06-16

Type: CWE-306

Risk Information

CVSS v2

Base Score: 6.4

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

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 9.1

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

Impact Score: 5.2

Exploitability Score: 3.9

Severity: CRITICAL