CVE-2023-30258
📋 TL;DR
CVE-2023-30258 is a critical command injection vulnerability in MagnusBilling that allows unauthenticated remote attackers to execute arbitrary commands on affected systems. This affects all MagnusBilling 6.x and 7.x installations, potentially compromising the entire server.
💻 Affected Systems
- MagnusSolution MagnusBilling
📦 What is this software?
Magnusbilling by Magnussolution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining root access, installing malware, stealing sensitive billing data, and pivoting to other network systems.
Likely Case
Remote code execution leading to data theft, ransomware deployment, or creation of persistent backdoors on the billing system.
If Mitigated
Attack blocked at network perimeter; no impact if system is properly segmented and patched.
🎯 Exploit Status
Multiple public exploit scripts available; trivial to execute with basic HTTP requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in commit ccff9f6370f530cc41ef7de2e31d7590a0fdb8c3
Vendor Advisory: https://github.com/magnussolution/magnusbilling7/commit/ccff9f6370f530cc41ef7de2e31d7590a0fdb8c3
Restart Required: No
Instructions:
1. Update to latest MagnusBilling version 2. Apply commit ccff9f6370f530cc41ef7de2e31d7590a0fdb8c3 3. Verify input validation is properly implemented
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict access to MagnusBilling web interface to trusted IP addresses only
iptables -A INPUT -p tcp --dport 80 -s TRUSTED_IP -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s TRUSTED_IP -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
Web Application Firewall
allDeploy WAF with command injection rules to block exploit attempts
modsecurity --enable-all
Configure OWASP CRS rules for command injection
🧯 If You Can't Patch
- Immediately take system offline or restrict all network access
- Implement strict network segmentation and monitor for any suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check if MagnusBilling version is 6.x or 7.x and not patched with commit ccff9f6370f530cc41ef7de2e31d7590a0fdb8c3Check Version:
Check MagnusBilling admin panel or review application version filesVerify Fix Applied:
Verify the commit hash is present in git log and test with known exploit payloads (safely in isolated environment)📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- HTTP requests containing shell metacharacters like ;, |, &, $()
- Process execution from web user context
Network Indicators:
- HTTP POST requests with command injection payloads to MagnusBilling endpoints
- Outbound connections from web server to unexpected destinations
SIEM Query:
source="web_logs" AND (url="*magnusbilling*" AND (method="POST" AND (uri="*cmd=*" OR uri="*exec*" OR uri="*system*" OR data="*;*" OR data="*|*" OR data="*$(*")))🔗 References
- http://packetstormsecurity.com/files/175672/MagnusBilling-Remote-Command-Execution.html
- https://eldstal.se/advisories/230327-magnusbilling.html
- https://github.com/MarkLee131/awesome-web-pocs/blob/main/CVE-2023-30258.md
- https://github.com/magnussolution/magnusbilling7/commit/ccff9f6370f530cc41ef7de2e31d7590a0fdb8c3
- http://packetstormsecurity.com/files/175672/MagnusBilling-Remote-Command-Execution.html
- https://eldstal.se/advisories/230327-magnusbilling.html
- https://github.com/magnussolution/magnusbilling7/commit/ccff9f6370f530cc41ef7de2e31d7590a0fdb8c3
