CVE-2025-7451
📋 TL;DR
CVE-2025-7451 is an unauthenticated remote OS command injection vulnerability in iSherlock software developed by Hgiga. Attackers can execute arbitrary operating system commands on affected servers, potentially gaining full control. All organizations using vulnerable versions of iSherlock are affected.
💻 Affected Systems
- Hgiga iSherlock
⚠️ 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 system compromise allowing attackers to install malware, steal sensitive data, pivot to internal networks, and maintain persistent access.
Likely Case
Attackers deploy ransomware, cryptocurrency miners, or backdoors to maintain control over compromised systems.
If Mitigated
Limited impact if network segmentation prevents lateral movement and command execution is restricted via security controls.
🎯 Exploit Status
Active exploitation has been confirmed according to TWCERT advisories. Attackers can exploit this without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Latest security update from Hgiga
Vendor Advisory: https://www.twcert.org.tw/en/cp-139-10238-f2bba-2.html
Restart Required: Yes
Instructions:
1. Contact Hgiga for the security update. 2. Backup current configuration. 3. Apply the security patch. 4. Restart the iSherlock service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Network Access Control
allRestrict network access to iSherlock instances using firewall rules
Application Layer Filtering
allImplement WAF rules to block command injection patterns
🧯 If You Can't Patch
- Isolate affected systems in a separate network segment with strict egress filtering
- Implement application allowlisting to prevent execution of unauthorized commands
🔍 How to Verify
Check if Vulnerable:
Check iSherlock version against vendor advisory. If running any version before the security update, assume vulnerable.Check Version:
Check iSherlock web interface or configuration files for version informationVerify Fix Applied:
Verify iSherlock version matches the patched version from vendor advisory and test functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by command execution
- Suspicious process creation from iSherlock service
Network Indicators:
- Unusual outbound connections from iSherlock server
- Traffic to known malicious IPs or domains
SIEM Query:
source="iSherlock" AND (process_execution OR command_injection OR suspicious_command)