CVE-2022-23131— Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML
Quick assessment
Affected
Zabbix Frontend
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Zabbix是拉脱维亚Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 存在安全漏洞，该漏洞源于在启用 SAML SSO 身份验证（非默认）的情况下，恶意行为者可以修改会话数据，因为存储在会话中的用户登录未经过验证。 未经身份验证的恶意攻击者可能会利用此问题来提升权限并获得对 Zabbix 前端的管理员访问权限。
Public Exploits 1
Nuclei · 1
CVE-2022-23131.yaml [template]
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 1 AI
T1078.001 · Default Accounts
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I. Basic Information for CVE-2022-23131
Vulnerability Information
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Vulnerability Title
Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML
Source: CVE Program / CVE List V5
Vulnerability Description
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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是拉脱维亚Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 存在安全漏洞，该漏洞源于在启用 SAML SSO 身份验证（非默认）的情况下，恶意行为者可以修改会话数据，因为存储在会话中的用户登录未经过验证。 未经身份验证的恶意攻击者可能会利用此问题来提升权限并获得对 Zabbix 前端的管理员访问权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
II. Public POCs for CVE-2022-23131
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | None | https://github.com/qq1549176285/CVE-2022-23131 | POC Details |
| 2 | cve-2022-23131 exp | https://github.com/jweny/CVE-2022-23131 | POC Details |
| 3 | cve-2022-23131 zabbix-saml-bypass-exp | https://github.com/Mr-xn/cve-2022-23131 | POC Details |
| 4 | None | https://github.com/1mxml/CVE-2022-23131 | POC Details |
| 5 | None | https://github.com/0tt7/CVE-2022-23131 | POC Details |
| 6 | poc | https://github.com/zwjjustdoit/cve-2022-23131 | POC Details |
| 7 | cve-2022-23131 | https://github.com/L0ading-x/cve-2022-23131 | POC Details |
| 8 | Zabbix SSO Bypass | https://github.com/random-robbie/cve-2022-23131-exp | POC Details |
| 9 | None | https://github.com/trganda/CVE-2022-23131 | POC Details |
| 10 | None | https://github.com/pykiller/CVE-2022-23131 | POC Details |
| 11 | None | https://github.com/Fa1c0n35/zabbix-cve-2022-23131 | POC Details |
| 12 | Zabbix - SAML SSO Authentication Bypass | https://github.com/kh4sh3i/CVE-2022-23131 | POC Details |
| 13 | CVE-2022-23131漏洞利用工具开箱即用。 | https://github.com/Kazaf6s/CVE-2022-23131 | POC Details |
| 14 | CVE-2022-23131漏洞批量检测与利用脚本 | https://github.com/SCAMagic/CVE-2022-23131poc-exp-zabbix- | POC Details |
| 15 | Zabbix-SAML-Bypass: CVE-2022-23131 | https://github.com/Vulnmachines/Zabbix-CVE-2022-23131 | POC Details |
| 16 | None | https://github.com/wr0x00/cve-2022-23131 | POC Details |
| 17 | zabbix saml bypass | https://github.com/Arrnitage/CVE-2022-23131_exp | POC Details |
| 18 | None | https://github.com/clearcdq/Zabbix-SAML-SSO-_CVE-2022-23131 | POC Details |
| 19 | None | https://github.com/r10lab/CVE-2022-23131 | POC Details |
| 20 | CVE-2022-23131 Zabbix Server SAML authentication exploit | https://github.com/fork-bombed/CVE-2022-23131 | POC Details |
| 21 | Zabbix Frontend Authentication Bypass Vulnerability | https://github.com/davidzzo23/CVE-2022-23131 | POC Details |
| 22 | None | https://github.com/dagowda/Zabbix-cve-2022-23131-SSO-bypass | POC Details |
| 23 | cve-2022-23131 exp | https://github.com/motherlytig/CVE-2022-23131 | POC Details |
| 24 | cve-2022-23131 exp | https://github.com/worstundersh/CVE-2022-23131 | POC Details |
| 25 | 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. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2022/CVE-2022-23131.yaml | POC Details |
| 26 | None | https://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Zabbix%20SAML%E8%BA%AB%E4%BB%BD%E7%BB%95%E8%BF%87%E6%BC%8F%E6%B4%9E%20CVE-2022-23131.md | POC Details |
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Other References for CVE-2022-23131 (1)
-
https://support.zabbix.com/browse/ZBX-20350 x_refsource_MISC
Same Patch Batch · Zabbix · 2022-01-13 · 4 CVEs total
| CVE-2022-23133 | 6.3 MEDIUM | Stored XSS in host groups configuration window in Zabbix Frontend |
| CVE-2022-23134 | 3.7 LOW | Possible view of the setup pages by unauthenticated users if config file already exists |
| CVE-2022-23132 | 3.3 LOW | Incorrect permissions of [/var/run/zabbix] forces dac_override |
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V. Comments for CVE-2022-23131
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