SB2022092614 - Privilege escalation in Grafana
Published: September 26, 2022 Updated: October 20, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-36062)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions, which leads to security restrictions bypass and privilege escalation.
2) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2022-35957)
CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to escalate privileges within the application.
The vulnerability exists due to the way Grafana handles authorization process when Auth proxy authentication is used. A remote user with admin privileges can authenticate as Server Admin by providing the username (or email) in a X-WEBAUTH-USER HTTP header.
Remediation
Install update from vendor's website.