Bug 2179135 (CVE-2023-27487)

Summary:	CVE-2023-27487 envoy: Client may fake the header `x-envoy-original-path`
Product:	[Other] Security Response	Reporter:	Anten Skrabec <askrabec>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jwendell, rcernich, sfowler, twalsh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in envoy. 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 could then be used for trace logs and grpc logs, used in the URL for jwt_authn checks if the jwt_authn filter is used, and any other upstream use of the x-envoy-original-path header.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-08-11 21:10:33 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2178208

Description Anten Skrabec 2023-03-16 17:26:27 UTC

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.

Comment 3 Pedro Sampaio 2023-04-04 19:14:20 UTC

Public:

https://github.com/envoyproxy/envoy/security/advisories/GHSA-5375-pq35-hf2g

Comment 5 errata-xmlrpc 2023-08-11 16:48:12 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Service Mesh 2.2 for RHEL 8

Via RHSA-2023:4623 https://access.redhat.com/errata/RHSA-2023:4623

Comment 6 Product Security DevOps Team 2023-08-11 21:10:32 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-27487