CVE-2025-29628
📋 TL;DR
CVE-2025-29628 is a command injection vulnerability in Gardyn 4 that allows remote attackers to execute arbitrary commands on affected systems. This can lead to information disclosure and full system compromise. All users running vulnerable versions of Gardyn 4 are affected.
💻 Affected Systems
- Gardyn 4
⚠️ 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 takeover with attacker gaining root privileges, data exfiltration, and persistent backdoor installation.
Likely Case
Unauthorized access to sensitive information and limited command execution leading to service disruption.
If Mitigated
Limited impact due to network segmentation and strict input validation, potentially only information disclosure.
🎯 Exploit Status
GitHub reference contains technical details suggesting exploit development is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://gardyn.com
Restart Required: Yes
Instructions:
1. Check Gardyn vendor website for security updates. 2. Apply any available patches. 3. Restart affected services. 4. Verify fix implementation.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict network access to Gardyn systems using firewalls
iptables -A INPUT -p tcp --dport [GARDYN_PORT] -s [TRUSTED_NETWORK] -j ACCEPT
iptables -A INPUT -p tcp --dport [GARDYN_PORT] -j DROP
Input Validation Enhancement
allImplement strict input validation for user-supplied data
🧯 If You Can't Patch
- Isolate Gardyn systems in separate network segments with strict firewall rules
- Implement web application firewall (WAF) with command injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check Gardyn version and compare against patched versions when available. Review system logs for suspicious command execution patterns.Check Version:
Check Gardyn application configuration or system documentation for version informationVerify Fix Applied:
Test with controlled input that previously triggered the vulnerability. Monitor for successful command execution attempts.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Unexpected process creation from Gardyn service
- Suspicious network connections from Gardyn system
Network Indicators:
- Unexpected outbound connections from Gardyn system
- Traffic patterns indicating data exfiltration
- Anomalous request patterns to Gardyn endpoints
SIEM Query:
source="gardyn.log" AND (command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*")