CVE-2016-4402
📋 TL;DR
This is a critical remote code execution vulnerability in HP KeyView's Filter SDK component. Attackers can exploit it remotely via buffer overflow to execute arbitrary code on affected systems. Organizations using HP KeyView versions earlier than 11.2 are at risk.
💻 Affected Systems
- HP KeyView
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the affected system, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Remote code execution allowing attackers to install malware, create backdoors, or use the system as part of a botnet.
If Mitigated
Limited impact with proper network segmentation, application whitelisting, and exploit prevention controls in place.
🎯 Exploit Status
Buffer overflow vulnerabilities in widely used components are frequently weaponized. The high CVSS score indicates low attack complexity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 11.2 or later
Vendor Advisory: https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05325836
Restart Required: Yes
Instructions:
1. Download HP KeyView version 11.2 or later from HPE support portal. 2. Backup current configuration. 3. Install the update following vendor instructions. 4. Restart affected systems. 5. Verify successful installation.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to systems running HP KeyView to minimize attack surface.
Application Control
allImplement application whitelisting to prevent execution of unauthorized code.
🧯 If You Can't Patch
- Isolate affected systems in a separate network segment with strict access controls.
- Implement memory protection controls like DEP and ASLR if not already enabled.
🔍 How to Verify
Check if Vulnerable:
Check HP KeyView version using vendor documentation or system inventory tools. Versions earlier than 11.2 are vulnerable.Check Version:
Check vendor documentation for specific version check commands for your platform.Verify Fix Applied:
Verify installed version is 11.2 or later using vendor verification tools or version check commands.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from HP KeyView components
- Memory access violations in application logs
- Unexpected network connections from KeyView processes
Network Indicators:
- Suspicious network traffic to/from systems running HP KeyView
- Exploit kit traffic patterns
SIEM Query:
Process creation where parent process contains 'keyview' AND (command line contains suspicious patterns OR destination IP is external)🔗 References
- http://www.securityfocus.com/bid/94184
- http://www.securitytracker.com/id/1037235
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05325836
- http://www.securityfocus.com/bid/94184
- http://www.securitytracker.com/id/1037235
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05325836
