CVE-2020-37213
📋 TL;DR
CVE-2020-37213 is a buffer overflow vulnerability in TextCrawler Pro that allows attackers to cause denial of service by crashing the application. Attackers can exploit this by pasting an oversized payload into the license activation field. Users of TextCrawler Pro 3.1.1 are affected.
💻 Affected Systems
- TextCrawler Pro
⚠️ 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 unsaved work exists, and disruption to text processing workflows.
Likely Case
Application crash requiring manual restart, temporary disruption to user's text processing tasks.
If Mitigated
No impact if application is not exposed to untrusted inputs or if patched version is used.
🎯 Exploit Status
Exploit requires user interaction to paste payload into activation field. Proof of concept available on Exploit-DB.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.1.2 or later
Vendor Advisory: https://www.digitalvolcano.co.uk/index.html
Restart Required: Yes
Instructions:
1. Download latest version from vendor website
2. Install over existing installation
3. Restart computer if prompted
🔧 Temporary Workarounds
Disable license activation interface
windowsPrevent access to the license activation screen where the vulnerability exists
Input validation via application firewall
windowsBlock oversized inputs to TextCrawler process
🧯 If You Can't Patch
- Restrict application access to trusted users only
- Monitor for abnormal application crashes and investigate
🔍 How to Verify
Check if Vulnerable:
Check Help > About in TextCrawler Pro for version 3.1.1Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 3.1.2 or higher in Help > About📡 Detection & Monitoring
Log Indicators:
- Application crash logs for TextCrawler.exe
- Windows Event Logs showing application failures
Network Indicators:
- No network indicators - local exploit only
SIEM Query:
EventID=1000 AND ProcessName="TextCrawler.exe" AND Version="3.1.1"