CVE-2013-7070
📋 TL;DR
CVE-2013-7070 is a remote command execution vulnerability in Monitorix web interface that allows attackers to execute arbitrary commands via shell metacharacters in HTTP requests. This affects all Monitorix installations before version 3.3.1 that expose the web interface. Attackers can gain complete control of affected systems.
💻 Affected Systems
- Monitorix
📦 What is this software?
Monitorix by Fibranet
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attacker to execute arbitrary commands as the Monitorix process user, potentially leading to privilege escalation, data theft, and persistent backdoor installation.
Likely Case
Remote code execution leading to system compromise, data exfiltration, and lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to Monitorix interface.
🎯 Exploit Status
Simple HTTP request with shell metacharacters in URI path triggers command execution. Public exploit code available since 2013.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3.1 and later
Vendor Advisory: https://github.com/mikaku/Monitorix/commit/ff80441be7089f774448dfe4b49e6fced70e71cb
Restart Required: Yes
Instructions:
1. Backup current Monitorix configuration. 2. Upgrade to Monitorix 3.3.1 or later using package manager or source compilation. 3. Restart Monitorix service. 4. Verify the fix by checking version and testing exploit attempts.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to Monitorix web interface using firewall rules
iptables -A INPUT -p tcp --dport 8080 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP
Disable Web Interface
linuxTemporarily disable Monitorix web interface in configuration
sed -i 's/enabled = y/enabled = n/' /etc/monitorix/monitorix.conf
systemctl restart monitorix
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Monitorix server from untrusted networks
- Deploy web application firewall (WAF) with command injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check Monitorix version: monitorix --version. If version is below 3.3.1, system is vulnerable.Check Version:
monitorix --version || grep 'version' /etc/monitorix/monitorix.confVerify Fix Applied:
After upgrade, verify version is 3.3.1 or higher and test with safe command injection attempt: curl 'http://localhost:8080/monitorix/;echo%20test' should not execute commands.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests with shell metacharacters in Monitorix access logs
- Commands executed by Monitorix process in system logs
- Unexpected process spawns from Monitorix user
Network Indicators:
- HTTP requests containing shell metacharacters (;, |, &, $, `) to Monitorix port
- Outbound connections from Monitorix server to unusual destinations
SIEM Query:
source="monitorix_access.log" AND (uri="*;*" OR uri="*|*" OR uri="*&*" OR uri="*`*" OR uri="*$*")🔗 References
- http://openwall.com/lists/oss-security/2013/12/12/8
- https://github.com/mikaku/Monitorix/commit/ff80441be7089f774448dfe4b49e6fced70e71cb
- https://github.com/mikaku/Monitorix/issues/30
- http://openwall.com/lists/oss-security/2013/12/12/8
- https://github.com/mikaku/Monitorix/commit/ff80441be7089f774448dfe4b49e6fced70e71cb
- https://github.com/mikaku/Monitorix/issues/30
