CVE-2023-23952
📋 TL;DR
This CVE describes a command injection vulnerability in Broadcom's Advanced Secure Gateway and Content Analysis products. Attackers can execute arbitrary commands on affected systems by injecting malicious input. Organizations running vulnerable versions of these security appliances are affected.
💻 Affected Systems
- Advanced Secure Gateway
- Content Analysis
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands with high privileges, potentially leading to data theft, lateral movement, or complete system takeover.
Likely Case
Remote code execution allowing attackers to gain shell access, install malware, or pivot to internal networks.
If Mitigated
Limited impact if proper input validation and command sanitization are implemented, though some functionality may be disrupted.
🎯 Exploit Status
Command injection vulnerabilities typically have low exploitation complexity when unauthenticated access is possible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.3.13.1 for Advanced Secure Gateway, 3.1.6.0 for Content Analysis
Vendor Advisory: https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/22217
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Broadcom support portal. 2. Backup current configuration. 3. Apply the patch following vendor instructions. 4. Restart the appliance. 5. Verify successful update.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to vulnerable appliances to only trusted sources.
Input Validation Rules
allImplement strict input validation on all user-controlled parameters if appliance supports custom rules.
🧯 If You Can't Patch
- Isolate affected systems from internet and restrict internal access
- Implement network monitoring and intrusion detection for command injection patterns
🔍 How to Verify
Check if Vulnerable:
Check appliance version via web interface or CLI: show versionCheck Version:
show versionVerify Fix Applied:
Verify version is 7.3.13.1 or higher for ASG, 3.1.6.0 or higher for Content Analysis📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns
- Suspicious process creation
- Failed authentication attempts followed by command execution
Network Indicators:
- Unexpected outbound connections from appliance
- Command and control traffic patterns
SIEM Query:
source="asg_appliance" AND (process="cmd.exe" OR process="/bin/sh" OR command_injection_patterns)