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CVE-2022-23131: Zabbix Frontend Authentication Bypass Vulnerability

criticalknown exploitedpublic exploitCVE-2022-23131
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML.

CSIRTS triage

vendor: Zabbixproduct: Zabbix FrontendAuthentication bypass
What
Unsafe client-side session storage leads to authentication bypass and instance takeover.
Who is affected
Users of Zabbix Frontend with configured SAML.
Urgency
Remediation is critical due to active exploitation and high severity.
Action
Update Zabbix Frontend to the latest version and review session storage practices.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-02-22
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-23131

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-23131coverage & exploitation statusNVD · CVE.org

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