Bug 2155234 (CVE-2022-23536)

Summary:	CVE-2022-23536 cortex: Alertmanager can expose local files content via specially crafted config
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	agerstmayr, amctagga, etamir, gparvin, grafana-maint, jarrpa, jcantril, jkurik, madam, muagarwa, nathans, nbecker, njean, ocs-bugs, owatkins, pahickey, periklis, scox, sostapov, stcannon, teagle, tnielsen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Cortex 1.13.2, Cortex 1.14.1	Doc Type:	If docs needed, set a value
Doc Text:	A local file inclusion vulnerability exists in Cortex. This issue could allow a malicious actor to remotely read local files as a result of parsing maliciously crafted Alertmanager configurations when submitted to the Alertmanager Set Configuration API.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-21 09:18:34 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:	2155148

Description Avinash Hanwate 2022-12-20 13:29:18 UTC

Cortex provides multi-tenant, long term storage for Prometheus. A local file inclusion vulnerability exists in Cortex versions 1.13.0, 1.13.1 and 1.14.0, where a malicious actor could remotely read local files as a result of parsing maliciously crafted Alertmanager configurations when submitted to the Alertmanager Set Configuration API. Only users of the Alertmanager service where `-experimental.alertmanager.enable-api` or `enable_api: true` is configured are affected. Affected Cortex users are advised to upgrade to patched versions 1.13.2 or 1.14.1. However as a workaround, Cortex administrators may reject Alertmanager configurations containing the `api_key_file` setting in the `opsgenie_configs` section before sending to the Set Alertmanager Configuration API.

https://cortexmetrics.io/docs/api/#set-alertmanager-configuration
https://github.com/cortexproject/cortex/security/advisories/GHSA-cq2g-pw6q-hf7j
https://github.com/cortexproject/cortex/releases/tag/v1.13.2
https://github.com/cortexproject/cortex/releases/tag/v1.14.1

Comment 3 Product Security DevOps Team 2022-12-21 09:18:31 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-2022-23536