Vulnerability identifier: #VU64157

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-29226

CWE-ID: CWE-303

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
envoy
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Cloud Native Computing Foundation

Description

The vulnerability allows a remote attacker to to bypass authentication process.

The vulnerability exists due to the OAuth filter implementation does not include a mechanism for validating access tokens. A remote attacker can bypass the authentication.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

envoy: 1.0.0 - 1.22.0

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External links
http://github.com/envoyproxy/envoy/commit/7ffda4e809dec74449ebc330cebb9d2f4ab61360
http://github.com/envoyproxy/envoy/security/advisories/GHSA-h45c-2f94-prxh

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.