CVE-2023-47297
📋 TL;DR
A settings manipulation vulnerability in NCR Terminal Handler v1.5.1 allows attackers to execute arbitrary commands with elevated privileges, including modifying system security auditing configurations. This affects organizations using NCR Terminal Handler v1.5.1 for point-of-sale or terminal management systems. Attackers can exploit this to gain unauthorized system access and potentially compromise the entire environment.
💻 Affected Systems
- NCR Terminal Handler
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, disable security controls, exfiltrate sensitive data, and establish persistent backdoors across the network.
Likely Case
Attackers gain administrative access to affected systems, manipulate security settings, and potentially pivot to other systems in the network.
If Mitigated
Limited impact with proper network segmentation, least privilege access, and monitoring in place, though the vulnerability still presents significant risk.
🎯 Exploit Status
Exploitation requires some level of access but is relatively straightforward once initial access is obtained. The vulnerability allows privilege escalation and arbitrary command execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.5.2 or later
Vendor Advisory: https://www.ncr.com/security-advisories
Restart Required: Yes
Instructions:
1. Download the latest version from NCR's official distribution channels. 2. Backup current configuration and data. 3. Uninstall v1.5.1. 4. Install v1.5.2 or later. 5. Restart the system. 6. Verify the installation and restore configurations if needed.
🔧 Temporary Workarounds
Network Segmentation
allIsolate NCR Terminal Handler systems from critical network segments and restrict access to necessary ports only.
Access Control Restrictions
windowsImplement strict access controls and limit user privileges to only necessary functions.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems from critical infrastructure
- Deploy application allowlisting to prevent execution of unauthorized commands and binaries
🔍 How to Verify
Check if Vulnerable:
Check the installed version of NCR Terminal Handler. If version is 1.5.1, the system is vulnerable.Check Version:
Check the application properties or installation directory for version information, or use: wmic product where name="NCR Terminal Handler" get versionVerify Fix Applied:
Verify that NCR Terminal Handler version is 1.5.2 or later and test that settings manipulation no longer allows arbitrary command execution.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation events from NCR Terminal Handler
- Modifications to security auditing configurations
- Unexpected command execution with elevated privileges
Network Indicators:
- Unusual outbound connections from NCR Terminal Handler systems
- Traffic to unexpected ports or IP addresses
SIEM Query:
source="NCR Terminal Handler" AND (event_type="process_creation" OR event_type="registry_modification") AND user="SYSTEM" OR user="Administrator"