#VU60815 Improper access control in Zabbix - CVE-2022-23134

Vulnerability identifier: #VU60815

Vulnerability risk: Medium

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2022-23134

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zabbix
Server applications / Remote management servers, RDP, SSH

Vendor: Zabbix

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions to certain steps of setup.php file. A remote non-authenticated attacker can bypass implemented security restrictions and change the configuration of Zabbix Frontend.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Zabbix: 4.0.0 rc1 - 4.0.36, 5.0.0 rc1 - 5.0.19 rc1, 5.4.0 rc1 - 5.4.9 rc1

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External links
https://support.zabbix.com/browse/ZBX-20384
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/
https://lists.debian.org/debian-lts-announce/2022/02/msg00008.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.