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CVE-2022-23536— Alertmanager can expose local files content via specially crafted config

Quick assessment

Affected
cortexproject cortex
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

cortex是一个应用软件。提供了水平可扩展，高可用性，多租户的长期存储。 cortex 1.13.0、1.13.1和1.14.0版本存在安全漏洞。攻击者利用该漏洞通过解析恶意构建的Alertmanager配置来远程读取本地文件。

CVSS 6.5 · Medium EPSS 0.75% · P54

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2022-23536

Vulnerability Information
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Vulnerability Title
Alertmanager can expose local files content via specially crafted config
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
cortex 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cortex是一个应用软件。提供了水平可扩展，高可用性，多租户的长期存储。 cortex 1.13.0、1.13.1和1.14.0版本存在安全漏洞。攻击者利用该漏洞通过解析恶意构建的Alertmanager配置来远程读取本地文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
cortexproject cortex >= 1.13.0, <= 1.13.1 -

II. Public POCs for CVE-2022-23536

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III. Intelligence Information for CVE-2022-23536

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Vendor Advisories for CVE-2022-23536 (1)

Other References for CVE-2022-23536 (3)

IV. Related Vulnerabilities

Same product: cortex
Same weakness: CWE-73

V. Comments for CVE-2022-23536

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