CVE-2020-37191
📋 TL;DR
CVE-2020-37191 is a buffer overflow vulnerability in Top Password Software Dialup Password Recovery 1.30 that allows attackers to crash the application by sending overly long input to authentication fields. This affects users of version 1.30 who have the software installed and accessible. The vulnerability enables denial of service attacks but doesn't appear to allow code execution.
💻 Affected Systems
- Top Password Software Dialup Password Recovery
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete application crash requiring restart, potential data loss if recovery operations were in progress
Likely Case
Application becomes unresponsive and crashes, disrupting legitimate password recovery operations
If Mitigated
No impact if input validation is implemented or software is not exposed to untrusted users
🎯 Exploit Status
Exploit requires local access or ability to feed input to the application; proof-of-concept available on Exploit-DB
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.top-password.com/
Restart Required: No
Instructions:
1. Check vendor website for updated version
2. If update available, download and install
3. Verify version is no longer 1.30
🔧 Temporary Workarounds
Input Validation via Application Firewall
windowsUse application firewall to block overly long input to the software
Restrict Application Access
windowsLimit who can run the software to trusted users only
🧯 If You Can't Patch
- Uninstall the software if not critically needed
- Run software in isolated environment with no network access
🔍 How to Verify
Check if Vulnerable:
Check software version in Help > About menu; if version is 1.30, it's vulnerableCheck Version:
Not applicable - check via GUI Help > About menuVerify Fix Applied:
Verify version is no longer 1.30; test with 5000-character input to see if application crashes📡 Detection & Monitoring
Log Indicators:
- Application crash logs
- Windows Event Logs showing application termination
Network Indicators:
- Not applicable - local exploit
SIEM Query:
EventID=1000 OR EventID=1001 AND ProcessName contains 'Dialup Password Recovery'