Permissions, Privileges, and Access Controls in Zabbix - CVE-2022-23132
Published: February 23, 2022
Vulnerability identifier: #VU60812
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-23132
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Zabbix
Affected software:
Zabbix
Zabbix
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to during Zabbix installation from RPM, DAC_OVERRIDE SELinux capability is in use to access PID files in [/var/run/zabbix]
folder. In this case, Zabbix Proxy or Server processes can bypass file
read, write and execute permissions check on the file system level.
How to mitigate CVE-2022-23132
Install updates from vendor's website.
Sources
- https://support.zabbix.com/browse/ZBX-20341
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6SZYHXINBKCY42ITFSNCYE7KCSF33VRA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VB6W556GVXOKUYTASTDGL3AI7S3SJHX7/