CVE-2018-7279
📋 TL;DR
CVE-2018-7279 is a critical remote code execution vulnerability in AlienVault USM and OSSIM security management platforms. Attackers can exploit this vulnerability to execute arbitrary code on affected systems, potentially gaining full control. Organizations running vulnerable versions of these products are at risk.
💻 Affected Systems
- AlienVault USM
- AlienVault OSSIM
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install malware, steal sensitive data, pivot to other network resources, and maintain persistent access.
Likely Case
Unauthorized access to the security management platform, enabling attackers to disable security controls, manipulate logs, and access security event data.
If Mitigated
Limited impact due to network segmentation, strict access controls, and monitoring that detects exploitation attempts.
🎯 Exploit Status
The vulnerability allows remote code execution without authentication, making it highly attractive to attackers. While no public PoC was widely released, the critical nature suggests likely weaponization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.5.1
Vendor Advisory: https://www.alienvault.com/forums/discussion/17204/security-advisory-alienvault-v5-5-1-resolves-critical-vulnerability
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Download AlienVault 5.5.1 update from official sources. 3. Apply the update following AlienVault's upgrade documentation. 4. Restart the system as required. 5. Verify the update was successful.
🔧 Temporary Workarounds
Network Isolation
linuxRestrict network access to AlienVault systems to only trusted management networks
iptables -A INPUT -p tcp --dport 443 -s trusted_ip_range -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Immediately isolate the AlienVault system from internet access and restrict to management VLAN only
- Implement strict network monitoring and IDS/IPS rules to detect exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check the AlienVault version via web interface or command line. Versions below 5.5.1 are vulnerable.Check Version:
cat /etc/alienvault-releaseVerify Fix Applied:
Verify system version is 5.5.1 or higher and check that all services are running normally post-update.📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from web service context
- Unexpected file modifications in system directories
- Authentication bypass attempts in web logs
Network Indicators:
- Unusual outbound connections from AlienVault system
- Exploit pattern detection in web traffic to AlienVault
SIEM Query:
source="alienvault" AND (event_type="process_execution" AND process_name NOT IN (expected_processes)) OR (http_status="200" AND uri CONTAINS suspicious_pattern)🔗 References
- https://www.alienvault.com/forums/discussion/17155/alienvault-v5-5-1-hotfix-important-update
- https://www.alienvault.com/forums/discussion/17204/security-advisory-alienvault-v5-5-1-resolves-critical-vulnerability
- https://www.alienvault.com/forums/discussion/17155/alienvault-v5-5-1-hotfix-important-update
- https://www.alienvault.com/forums/discussion/17204/security-advisory-alienvault-v5-5-1-resolves-critical-vulnerability
