CVE-2020-5360
📋 TL;DR
Dell BSAFE Micro Edition Suite versions before 4.5 contain a buffer under-read vulnerability that allows unauthenticated remote attackers to cause undefined behavior or system crashes. This affects systems using the vulnerable cryptographic library for SSL/TLS or other security functions.
💻 Affected Systems
- Dell BSAFE Micro Edition Suite
📦 What is this software?
Database by Oracle
Database by Oracle
Database by Oracle
Database by Oracle
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, though buffer under-reads typically cause crashes rather than RCE
Likely Case
Denial of service through application or system crashes, potentially disrupting SSL/TLS services
If Mitigated
Limited impact with proper network segmentation and monitoring, though crashes could still occur
🎯 Exploit Status
Buffer under-read vulnerabilities require specific conditions to trigger and may be difficult to weaponize for RCE
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.5 or later
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000181098/dsa-2020-114-dell-bsafe-micro-edition-suite-multiple-security-vulnerabilities
Restart Required: Yes
Instructions:
1. Download BSAFE Micro Edition Suite version 4.5 or later from Dell support. 2. Replace the vulnerable library files. 3. Restart affected applications/services. 4. Test functionality.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to systems using BSAFE to trusted sources only
Application Firewall Rules
allImplement firewall rules to block unexpected traffic patterns that could trigger the vulnerability
🧯 If You Can't Patch
- Isolate affected systems from untrusted networks
- Implement monitoring for crash events and abnormal behavior
🔍 How to Verify
Check if Vulnerable:
Check BSAFE library version in applications or system libraries. Versions before 4.5 are vulnerable.Check Version:
Check application documentation or system library paths for BSAFE version informationVerify Fix Applied:
Verify BSAFE library version is 4.5 or later and test SSL/TLS functionality📡 Detection & Monitoring
Log Indicators:
- Application crashes
- SSL/TLS handshake failures
- Memory access violation errors
Network Indicators:
- Abnormal SSL/TLS traffic patterns
- Connection resets during cryptographic operations
SIEM Query:
search 'BSAFE' OR 'cryptographic failure' OR 'memory violation' in application logs🔗 References
- https://www.dell.com/support/kbdoc/en-us/000181098/dsa-2020-114-dell-bsafe-micro-edition-suite-multiple-security-vulnerabilities
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.dell.com/support/kbdoc/en-us/000181098/dsa-2020-114-dell-bsafe-micro-edition-suite-multiple-security-vulnerabilities
- https://www.oracle.com/security-alerts/cpuApr2021.html
