Zabbix · Frontend
CVE-2022-23131
Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML
What it is
In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default).
CISA: Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: March 8, 2022
- Added to the CISA list
- February 22, 2022
- Published
- January 13, 2022
- Severity
- Critical 9.1 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 96% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-290
- More details
- NVD · CVE.org · CISA
All references (1)
More exploited flaws from Zabbix
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Feb 22, 2022 | Improper Access Control | Frontend | Low 3.7 | 95% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.