Bug 2277334 (CVE-2024-4198)

Summary:	CVE-2024-4198 mattermost: fail to fully validate role changes which allows an attacker authenticated as team admin to demote users to guest
Product:	[Other] Security Response	Reporter:	Rohit Keshri <rkeshri>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dfreiber, drow, gparvin, jburrell, lbainbri, njean, owatkins, pahickey, rhaigner, sidakwo, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Mattermost, where it failed to fully validate role changes. This flaw allows an attacker authenticated as team admin to demote users to guests via crafted HTTP requests.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2277335, 2277336
Bug Blocks:	2277330

Description Rohit Keshri 2024-04-26 11:24:38 UTC

Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes which allows an attacker authenticated as team admin to demote users to guest via crafted HTTP requests.

https://mattermost.com/security-updates

Comment 1 Rohit Keshri 2024-04-26 11:27:04 UTC

Created purple-mattermost tracking bugs for this issue:

Affects: epel-all [bug 2277335]
Affects: fedora-all [bug 2277336]