CVE-2024-22116
📋 TL;DR
This critical vulnerability allows administrators with restricted permissions to execute arbitrary code via the Ping script in Zabbix monitoring systems. Attackers can exploit improper input escaping in script parameters to compromise infrastructure. Organizations using affected Zabbix versions with administrator accounts are at risk.
💻 Affected Systems
- Zabbix
📦 What is this software?
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
Zabbix by Zabbix
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands with elevated privileges, potentially leading to data theft, lateral movement, and persistent backdoor installation across the infrastructure.
Likely Case
Privilege escalation from restricted administrator to full system control, enabling attackers to modify monitoring configurations, exfiltrate sensitive data, and disrupt monitoring operations.
If Mitigated
Limited impact if proper access controls restrict administrator permissions and network segmentation isolates monitoring systems from critical infrastructure.
🎯 Exploit Status
Exploitation requires authenticated administrator access but is straightforward once credentials are obtained. The vulnerability is in default functionality with clear attack path.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Zabbix 6.0.31, 7.0.0beta3 or later
Vendor Advisory: https://support.zabbix.com/browse/ZBX-25016
Restart Required: Yes
Instructions:
1. Backup Zabbix configuration and database. 2. Download patched version from official Zabbix repository. 3. Follow Zabbix upgrade documentation for your version. 4. Restart Zabbix server and frontend services. 5. Verify functionality post-upgrade.
🔧 Temporary Workarounds
Restrict Script Permissions
allRemove script execution permissions from restricted administrator roles in Zabbix
Navigate to Administration > User roles > Edit role > Permissions
Remove 'Execute scripts' permission from affected roles
Disable Ping Script
allDisable or remove the Ping script functionality from Monitoring Hosts
Navigate to Configuration > Hosts > Select host > Scripts
Remove or disable Ping script for all hosts
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Zabbix servers from critical systems
- Enforce least privilege by removing all script execution permissions from administrator roles
🔍 How to Verify
Check if Vulnerable:
Check Zabbix version via web interface (Administration > General > About) or command line: zabbix_server --versionCheck Version:
zabbix_server --version | grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+'Verify Fix Applied:
Verify version is 6.0.31 or 7.0.0beta3+ and test that restricted administrators cannot execute arbitrary commands via Ping script📡 Detection & Monitoring
Log Indicators:
- Unusual script execution patterns in Zabbix server logs
- Ping script executions with suspicious parameters
- Administrator account performing unexpected script actions
Network Indicators:
- Outbound connections from Zabbix server to unexpected destinations
- Unusual command and control traffic patterns
SIEM Query:
source="zabbix_server.log" AND "script execution" AND ("ping" OR "arbitrary command")