Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2022-23132

Incorrect Permission Assignment for Critical Resource

Published: Jan 13, 2022 | Modified: Nov 07, 2023
CVSS 3.x
7.3
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
NEGLIGIBLE
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-23132
CWEhttps://cwe.mitre.org/data/definitions/732.html

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

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Zabbix Zabbix 4.0.0 (including) 4.0.36 (including)
Zabbix Zabbix 5.0.0 (including) 5.0.18 (including)
Zabbix Zabbix 5.4.0 (including) 5.4.8 (including)
Zabbix Zabbix 6.0.0-alpha1 (including) 6.0.0-alpha1 (including)
Zabbix Zabbix 6.0.0-alpha2 (including) 6.0.0-alpha2 (including)
Zabbix Zabbix 6.0.0-alpha3 (including) 6.0.0-alpha3 (including)
Zabbix Zabbix 6.0.0-alpha4 (including) 6.0.0-alpha4 (including)
Zabbix Zabbix 6.0.0-alpha5 (including) 6.0.0-alpha5 (including)
Zabbix Zabbix 6.0.0-alpha6 (including) 6.0.0-alpha6 (including)
Zabbix Zabbix 6.0.0-alpha7 (including) 6.0.0-alpha7 (including)
Zabbix Ubuntu bionic *
Zabbix Ubuntu esm-apps/focal *
Zabbix Ubuntu esm-apps/jammy *
Zabbix Ubuntu focal *
Zabbix Ubuntu hirsute *
Zabbix Ubuntu impish *
Zabbix Ubuntu jammy *
Zabbix Ubuntu kinetic *
Zabbix Ubuntu lunar *
Zabbix Ubuntu trusty *
Zabbix Ubuntu upstream *
Zabbix Ubuntu xenial *

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.

References

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