Bug 2235479 (CVE-2023-40577)

Summary:	CVE-2023-40577 prometheus-alertmanager: UI is vulnerable to stored XSS via the /api/v1/alerts endpoint
Product:	[Other] Security Response	Reporter:	Chess Hazlett <chazlett>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alcohan, dfreiber, drow, gparvin, jbalunas, jburrell, njean, owatkins, pahickey, rhaigner, rogbas, stcannon, teagle, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Alertmanager 0.25.1	Doc Type:	If docs needed, set a value
Doc Text:	Prometheus Alertmanager is vulnerable to cross-site scripting due to improper validation of user-supplied input by the /api/v1/alerts endpoint. This issue could allow a remote attacker to inject malicious script into a web page, which would be executed in a victim's web browser within the hosting website once the page is viewed, allow the attacker to steal the victim's cookie-based authentication credentials.	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:	2235477

Description Chess Hazlett 2023-08-28 20:12:56 UTC

Alertmanager handles alerts sent by client applications such as the Prometheus server. An attacker with the permission to perform POST requests on the /api/v1/alerts endpoint could be able to execute arbitrary JavaScript code on the users of Prometheus Alertmanager. This issue has been fixed in Alertmanager version 0.2.51.

Comment 3 errata-xmlrpc 2024-02-27 20:49:36 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.15

Via RHSA-2023:7198 https://access.redhat.com/errata/RHSA-2023:7198