CVE-2020-4216
📋 TL;DR
CVE-2020-4216 is a critical vulnerability in IBM Spectrum Protect Plus where hard-coded credentials allow attackers to bypass authentication and gain unauthorized access. This affects all deployments of IBM Spectrum Protect Plus versions 10.1.0 through 10.1.5. Attackers can use these credentials to access the system and potentially compromise backup data and infrastructure.
💻 Affected Systems
- IBM Spectrum Protect Plus
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access, modify, or delete backup data, deploy ransomware, and pivot to other systems in the environment.
Likely Case
Unauthorized access to backup data leading to data theft, data manipulation, or service disruption.
If Mitigated
Limited impact with proper network segmentation and access controls, but credentials remain vulnerable if accessible.
🎯 Exploit Status
Exploitation requires only knowledge of the hard-coded credentials and network access to the system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.1.6 and later
Vendor Advisory: https://www.ibm.com/support/pages/node/6221332
Restart Required: Yes
Instructions:
1. Download IBM Spectrum Protect Plus 10.1.6 or later from IBM Fix Central. 2. Follow IBM's upgrade documentation to apply the patch. 3. Restart all Spectrum Protect Plus services after patching.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Spectrum Protect Plus systems to only trusted administrative networks.
Firewall Rules
allImplement strict firewall rules to limit inbound connections to Spectrum Protect Plus management interfaces.
🧯 If You Can't Patch
- Isolate Spectrum Protect Plus systems from untrusted networks and internet access
- Implement strict access controls and monitor for unauthorized authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check the IBM Spectrum Protect Plus version via the web interface or administrative console. If version is between 10.1.0 and 10.1.5 inclusive, the system is vulnerable.Check Version:
Check via web interface at https://<server>:<port> or consult IBM documentation for CLI version checkVerify Fix Applied:
Verify the version is 10.1.6 or later and test that the hard-coded credentials no longer work for authentication.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful authentication using hard-coded credentials
- Unusual administrative activity from unexpected IP addresses
Network Indicators:
- Unauthorized access attempts to Spectrum Protect Plus management ports
- Traffic patterns indicating credential testing
SIEM Query:
source="spectrum_protect" AND (event_type="authentication" AND result="success") AND user="hardcoded_user"🔗 References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/175066
- https://www.ibm.com/support/pages/node/6221332
- https://www.zerodayinitiative.com/advisories/ZDI-20-710/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/175066
- https://www.ibm.com/support/pages/node/6221332
- https://www.zerodayinitiative.com/advisories/ZDI-20-710/
