Bug 2253625 (CVE-2022-39222)

Summary:	CVE-2022-39222 dexidp: gaining access to applications accepting that token
Product:	[Other] Security Response	Reporter:	Rohit Keshri <rkeshri>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aveerama, gparvin, njean, owatkins, pahickey, rhaigner, shbose, teagle, ubhargav
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in Dex, an identity service that uses OpenID Connect to drive authentication for other apps. This issue may allow an attacker to make a victim navigate to a malicious website and guide them through the OIDC flow, stealing the OAuth authorization code in the process. The authorization code then can be exchanged by the attacker for a token, gaining access to applications accepting that token. Version 2.35.0 has introduced a fix for this issue; Users are advised to upgrade.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2253624

Description Rohit Keshri 2023-12-08 10:46:09 UTC

Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex instances with public clients (and by extension, clients accepting tokens issued by those Dex instances) are affected by this vulnerability if they are running a version prior to 2.35.0. An attacker can exploit this vulnerability by making a victim navigate to a malicious website and guiding them through the OIDC flow, stealing the OAuth authorization code in the process. The authorization code then can be exchanged by the attacker for a token, gaining access to applications accepting that token. Version 2.35.0 has introduced a fix for this issue. Users are advised to upgrade. There are no known workarounds for this issue.

https://github.com/dexidp/dex/security/advisories/GHSA-vh7g-p26c-j2cw
https://github.com/dexidp/dex/commit/49471b14c8080ddb034d4855841123d378b7a634

Comment 4 errata-xmlrpc 2023-12-11 15:09:55 UTC

This issue has been addressed in the following products:

  Red Hat Advanced Cluster Security 4.3

Via RHSA-2023:7725 https://access.redhat.com/errata/RHSA-2023:7725