CVE-2022-23536

Alertmanager can expose local files content via specially crafted config

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Cortex proporciona almacenamiento a largo plazo para múltiples inquilinos para Prometheus. Existe una vulnerabilidad de inclusión de archivos locales en las versiones 1.13.0, 1.13.1 y 1.14.0 de Cortex, donde un actor malintencionado podría leer de forma remota archivos locales como resultado del análisis de configuraciones de Alertmanager diseñadas con fines malintencionados cuando se envían a la API de configuración de Alertmanager. Solo se ven afectados los usuarios del servicio Alertmanager donde está configurado `-experimental.alertmanager.enable-api` o `enable_api: true`. Se recomienda a los usuarios afectados de Cortex que actualicen a las versiones parcheadas 1.13.2 o 1.14.1. Sin embargo, como workaround, los administradores de Cortex pueden rechazar las configuraciones de Alertmanager que contengan la configuración `api_key_file` en la sección `opsgenie_configs` antes de enviarlas a la API Set Alertmanager Configuration.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-19 CVE Reserved
2022-12-19 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-73: External Control of File Name or Path
CWE-184: Incomplete List of Disallowed Inputs
CWE-641: Improper Restriction of Names for Files and Other Resources

CAPEC

References (4)

URL	Tag	Source
https://github.com/cortexproject/cortex/releases/tag/v1.13.2	Release Notes
https://github.com/cortexproject/cortex/releases/tag/v1.14.1	Release Notes
https://github.com/cortexproject/cortex/security/advisories/GHSA-cq2g-pw6q-hf7j	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://cortexmetrics.io/docs/api/#set-alertmanager-configuration	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linuxfoundation Search vendor "Linuxfoundation"		Cortex Search vendor "Linuxfoundation" for product "Cortex"				1.13.0 Search vendor "Linuxfoundation" for product "Cortex" and version "1.13.0"		-		Affected
Linuxfoundation Search vendor "Linuxfoundation"		Cortex Search vendor "Linuxfoundation" for product "Cortex"				1.13.1 Search vendor "Linuxfoundation" for product "Cortex" and version "1.13.1"		-		Affected
Linuxfoundation Search vendor "Linuxfoundation"		Cortex Search vendor "Linuxfoundation" for product "Cortex"				1.14.0 Search vendor "Linuxfoundation" for product "Cortex" and version "1.14.0"		-		Affected