CVE-2024-5311
📋 TL;DR
CVE-2024-5311 is a critical SQL injection vulnerability in DigiWin EasyFlow .NET that allows unauthenticated remote attackers to execute arbitrary SQL commands. This enables attackers to read, modify, or delete database records without authentication. Organizations using vulnerable versions of DigiWin EasyFlow .NET are affected.
💻 Affected Systems
- DigiWin EasyFlow .NET
⚠️ 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 compromise of the database including data theft, data destruction, and potential lateral movement to other systems.
Likely Case
Data exfiltration and unauthorized modification of workflow data, potentially disrupting business operations.
If Mitigated
Limited impact with proper input validation and database permissions in place.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited and this one requires no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with DigiWin for specific patched version
Vendor Advisory: https://www.twcert.org.tw/tw/cp-132-7844-52dad-1.html
Restart Required: Yes
Instructions:
1. Contact DigiWin for the security patch. 2. Apply the patch to all affected systems. 3. Restart the EasyFlow service. 4. Verify the fix is working.
🔧 Temporary Workarounds
Input Validation Filter
allImplement input validation to filter SQL special characters
Implement parameterized queries in the application code
Network Segmentation
allRestrict access to the EasyFlow application
Configure firewall rules to limit access to trusted IPs only
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with SQL injection rules
- Restrict database user permissions to minimum required access
🔍 How to Verify
Check if Vulnerable:
Check if your EasyFlow .NET version is unpatched by comparing with vendor's advisoryCheck Version:
Check the application version in the EasyFlow administration interfaceVerify Fix Applied:
Test for SQL injection using safe payloads after applying the patch📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns in database logs
- Multiple failed login attempts with SQL payloads
Network Indicators:
- HTTP requests containing SQL keywords to EasyFlow endpoints
SIEM Query:
source="web_server" AND (url="*EasyFlow*" AND (request="*SELECT*" OR request="*UNION*" OR request="*OR 1=1*"))