SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-23134

Zabbix Frontend Improper Access Control Vulnerability

KEVMEDIUM 5.3EPSS 84.7%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 8 March 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

After the initial setup process, some steps of setup.php file are reachable not only by super-administrators, but by unauthenticated users as well. Malicious actor can pass step checks and potentially change the configuration of Zabbix Frontend.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
84.66% probability · 100th percentile
CISA KEV
Listed 22 February 2022 · due 8 March 2022
Weakness
CWE-284, CWE-287
Affected
zabbix/zabbix · fedoraproject/fedora · debian/debian linux
Source
security@zabbix.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2022-23134

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.