CVE-2023-27487

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the client may bypass JSON Web Token (JWT) checks and forge fake original paths. The header `x-envoy-original-path` should be an internal header, but Envoy does not remove this header from the request at the beginning of request processing when it is sent from an untrusted client. The faked header would then be used for trace logs and grpc logs, as well as used in the URL used for `jwt_authn` checks if the `jwt_authn` filter is used, and any other upstream use of the x-envoy-original-path header. Attackers may forge a trusted `x-envoy-original-path` header. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 have patches for this issue.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-5375-pq35-hf2g	Exploit Vendor Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-5375-pq35-hf2g	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::

History

21 Nov 2024, 07:53

Type	Values Removed	Values Added
References	~~() https://github.com/envoyproxy/envoy/security/advisories/GHSA-5375-pq35-hf2g - Exploit, Vendor Advisory~~	() https://github.com/envoyproxy/envoy/security/advisories/GHSA-5375-pq35-hf2g - Exploit, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~9.1~~	v2 : unknown v3 : 8.2

Information

Published : 2023-04-04 16:15

Updated : 2024-11-21 07:53

NVD link : CVE-2023-27487

Mitre link : CVE-2023-27487

CVE.ORG link : CVE-2023-27487

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo

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