CVE-2023-45185
📋 TL;DR
This vulnerability in IBM i Access Client Solutions allows attackers to execute remote code on affected PCs by exploiting improper authority checks. Attackers could perform operations under the user's authority, potentially compromising the system. Users running vulnerable versions of IBM i Access Client Solutions are affected.
💻 Affected Systems
- IBM i Access Client Solutions
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the PC, potentially leading to data theft, ransomware deployment, or lateral movement within the network.
Likely Case
Attacker executes malicious code with user privileges, potentially stealing credentials, accessing sensitive files, or installing malware.
If Mitigated
Limited impact with proper network segmentation, least privilege principles, and updated antivirus preventing successful exploitation.
🎯 Exploit Status
Exploitation requires some level of access or social engineering to trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.9.4 and later
Vendor Advisory: https://www.ibm.com/support/pages/node/7091942
Restart Required: Yes
Instructions:
1. Download IBM i Access Client Solutions 1.1.9.4 or later from IBM Fix Central. 2. Uninstall current version. 3. Install updated version. 4. Restart the system.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to IBM i Access Client Solutions to trusted networks only
User Privilege Reduction
allRun IBM i Access Client Solutions with minimal user privileges
🧯 If You Can't Patch
- Disable or uninstall IBM i Access Client Solutions if not required
- Implement strict network controls and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check Help > About in IBM i Access Client Solutions to see if version is between 1.1.2-1.1.4 or 1.1.4.3-1.1.9.3Check Version:
Not applicable - use GUI Help > About menuVerify Fix Applied:
Verify version is 1.1.9.4 or later in Help > About📡 Detection & Monitoring
Log Indicators:
- Unexpected process execution from IBM i Access Client Solutions
- Unusual network connections from the application
Network Indicators:
- Suspicious outbound connections from IBM i Access Client Solutions
SIEM Query:
source="IBM i Access Client Solutions" AND (event_type="process_execution" OR event_type="network_connection")