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CVE-2022-35957— Authentication Bypass in Grafana via auth proxy allowing escalation from admin to server admin

Quick assessment

Affected
grafana grafana
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.

Grafana是Grafana实验室的一套提供可视化监控界面的开源监控工具。该工具主要用于监控和分析Graphite、InfluxDB和Prometheus等。 Grafana 9.1.6之前版本和8.5.13之前版本存在安全漏洞，该漏洞源于Auth 代理允许通过仅在 HTTP 标头中提供用户名（或电子邮件）来对用户进行身份验证，攻击者利用该漏洞可以从管理员权限升级到服务器管理员。

CVSS 6.6 · Medium EPSS 1.63% · P75

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2022-35957

Vulnerability Information
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Vulnerability Title
Authentication Bypass in Grafana via auth proxy allowing escalation from admin to server admin
Source: CVE Program / CVE List V5
Vulnerability Description
Grafana is an open-source platform for monitoring and observability. Versions prior to 9.1.6 and 8.5.13 are vulnerable to an escalation from admin to server admin when auth proxy is used, allowing an admin to take over the server admin account and gain full control of the grafana instance. All installations should be upgraded as soon as possible. As a workaround deactivate auth proxy following the instructions at: https://grafana.com/docs/grafana/latest/setup-grafana/configure-security/configure-authentication/auth-proxy/
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Grafana 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grafana是Grafana实验室的一套提供可视化监控界面的开源监控工具。该工具主要用于监控和分析Graphite、InfluxDB和Prometheus等。 Grafana 9.1.6之前版本和8.5.13之前版本存在安全漏洞，该漏洞源于Auth 代理允许通过仅在 HTTP 标头中提供用户名（或电子邮件）来对用户进行身份验证，攻击者利用该漏洞可以从管理员权限升级到服务器管理员。
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
grafana grafana > 9.0.0, < 9.1.6 -

II. Public POCs for CVE-2022-35957

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III. Intelligence Information for CVE-2022-35957

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Vendor Advisories for CVE-2022-35957 (2)

Mailing List Discussions for CVE-2022-35957 (1)

IV. Related Vulnerabilities

Same product: grafana
Same vendor: grafana
Same weakness: CWE-290

V. Comments for CVE-2022-35957

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