CVE-2020-26185
📋 TL;DR
CVE-2020-26185 is a buffer over-read vulnerability in Dell BSAFE Micro Edition Suite that could allow attackers to read sensitive information from adjacent memory locations. This affects systems using BSAFE Micro Edition Suite versions prior to 4.5.1 for cryptographic operations. The vulnerability primarily impacts organizations using Dell's cryptographic libraries in their applications.
💻 Affected Systems
- Dell BSAFE Micro Edition Suite
📦 What is this software?
Database by Oracle
Database by Oracle
Database by Oracle
⚠️ Risk & Real-World Impact
Worst Case
Information disclosure of sensitive cryptographic keys or other memory-resident data, potentially leading to complete system compromise if combined with other vulnerabilities.
Likely Case
Limited information disclosure from adjacent memory buffers, potentially exposing application data or configuration information.
If Mitigated
Minimal impact with proper memory protection mechanisms and ASLR enabled, though some information leakage may still occur.
🎯 Exploit Status
Buffer over-read vulnerabilities typically require specific conditions to be exploitable and may not lead to arbitrary code execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.5.1 or later
Vendor Advisory: https://www.dell.com/support/article/en-us/sln322935/dsa-2020-245-dell-bsafe-micro-edition-suite-multiple-vulnerabilities?lang=en
Restart Required: Yes
Instructions:
1. Download BSAFE Micro Edition Suite version 4.5.1 or later from Dell support. 2. Replace the vulnerable library files with patched versions. 3. Recompile and redeploy any applications using the library. 4. Restart affected services and systems.
🔧 Temporary Workarounds
Memory Protection Hardening
allEnable ASLR and other memory protection mechanisms to reduce impact of memory disclosure
🧯 If You Can't Patch
- Isolate systems using vulnerable BSAFE libraries from untrusted networks
- Implement network segmentation and monitor for unusual memory access patterns
🔍 How to Verify
Check if Vulnerable:
Check the version of BSAFE Micro Edition Suite libraries installed on the system. Look for libcrypto.so or similar BSAFE library files and check their version numbers.Check Version:
On Linux: strings /path/to/bsafe/library | grep -i version; On Windows: Check file properties or use PowerShell: Get-Item 'C:\Path\To\BSAFE\Library.dll' | Select-Object VersionInfoVerify Fix Applied:
Verify that BSAFE Micro Edition Suite version is 4.5.1 or higher. Check library file versions and ensure applications are linked against the updated libraries.📡 Detection & Monitoring
Log Indicators:
- Application crashes or abnormal termination
- Memory access violation errors in application logs
- Unusual cryptographic operation failures
Network Indicators:
- Unexpected data being transmitted from applications using BSAFE
- Patterns suggesting memory scraping attempts
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "access violation" OR "buffer over-read") AND process="*bsafe*"🔗 References
- https://www.dell.com/support/article/en-us/sln322935/dsa-2020-245-dell-bsafe-micro-edition-suite-multiple-vulnerabilities?lang=en
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.dell.com/support/article/en-us/sln322935/dsa-2020-245-dell-bsafe-micro-edition-suite-multiple-vulnerabilities?lang=en
- https://www.oracle.com/security-alerts/cpujul2022.html
