CVE-2023-28074
📋 TL;DR
This vulnerability allows an unauthenticated attacker with local access to read memory outside intended bounds in Dell BSAFE cryptographic libraries. This could expose sensitive information like cryptographic keys or application data. Organizations using affected Dell BSAFE Crypto-C Micro Edition or Micro Edition Suite versions are impacted.
💻 Affected Systems
- Dell BSAFE Crypto-C Micro Edition
- Dell BSAFE Micro Edition Suite
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker extracts cryptographic keys or sensitive application data, potentially compromising encryption or authentication mechanisms.
Likely Case
Information disclosure of adjacent memory contents, which could include application data or system information.
If Mitigated
Limited information exposure with minimal impact if proper access controls and isolation are implemented.
🎯 Exploit Status
Exploitation requires local access and knowledge of the application using the vulnerable library.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Crypto-C Micro Edition: 4.2.0; Micro Edition Suite: 4.7.0 and 5.1.0
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000212325/dsa-2023-120-dell-bsafe-micro-edition-suite-security-update
Restart Required: Yes
Instructions:
1. Identify applications using affected BSAFE libraries. 2. Update to patched versions (4.2.0 for Crypto-C, 4.7.0/5.1.0 for Suite). 3. Rebuild and redeploy applications with updated libraries. 4. Restart affected services.
🔧 Temporary Workarounds
Restrict local access
allLimit local access to systems running vulnerable applications to trusted users only.
Application isolation
allRun vulnerable applications in isolated environments or containers with minimal privileges.
🧯 If You Can't Patch
- Implement strict access controls to limit local user access to vulnerable systems.
- Monitor for unusual local process activity or memory access patterns.
🔍 How to Verify
Check if Vulnerable:
Check application dependencies for BSAFE library versions. Use 'ldd' on Linux or dependency checkers to identify linked libraries.Check Version:
On Linux: 'strings /path/to/library | grep -i version' or check package manager. On Windows: Check DLL properties or use dependency walker.Verify Fix Applied:
Verify updated library versions are present (4.2.0 for Crypto-C, 4.7.0/5.1.0 for Suite) and applications are rebuilt with them.📡 Detection & Monitoring
Log Indicators:
- Unusual local process crashes or memory access errors in application logs
Network Indicators:
- None - local vulnerability only
SIEM Query:
Process monitoring for abnormal memory reads or crashes in applications using BSAFE libraries.