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

CVSS Scores

NISTv3.1 6.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

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
2024-11-04 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