CVE-2025-2729
📋 TL;DR
This critical vulnerability in H3C Magic routers allows attackers within the local network to execute arbitrary commands via a command injection flaw in the HTTP POST request handler for the /api/wizard/networkSetup endpoint. It affects H3C Magic NX15, NX30 Pro, NX400, R3010, and BE18000 devices running firmware up to V100R014. Exploitation could lead to full device compromise.
💻 Affected Systems
- H3C Magic NX15
- H3C Magic NX30 Pro
- H3C Magic NX400
- H3C Magic R3010
- H3C Magic BE18000
⚠️ 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
Full device takeover, enabling attackers to steal credentials, pivot to other internal systems, or deploy persistent malware.
Likely Case
Local network attackers gain remote code execution to modify router settings, intercept traffic, or disrupt network services.
If Mitigated
If isolated or patched, impact is limited to potential denial-of-service or minor configuration changes if other controls fail.
🎯 Exploit Status
Exploit details are publicly disclosed, making it easier for attackers to craft attacks; exploitation is straightforward within the local network.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V100R014 or later (check vendor for specific fixed version)
Vendor Advisory: https://www.h3c.com/cn/Service/Document_Software/Software_Download/Consume_product/
Restart Required: Yes
Instructions:
1. Access the H3C vendor website. 2. Download the latest firmware for your specific model. 3. Upload and apply the firmware update via the router's admin interface. 4. Reboot the device to complete the update.
🔧 Temporary Workarounds
Restrict Local Network Access
allLimit access to the router's management interface to trusted devices only using network segmentation or firewall rules.
Disable Unnecessary Services
allIf possible, disable the vulnerable /api/wizard/networkSetup endpoint or restrict HTTP POST requests to it.
🧯 If You Can't Patch
- Isolate affected routers in a separate VLAN to minimize lateral movement risk.
- Implement strict network monitoring and intrusion detection for unusual POST requests to the vulnerable endpoint.
🔍 How to Verify
Check if Vulnerable:
Check the firmware version via the router's web interface or CLI; if version is V100R014 or earlier, it is vulnerable.Check Version:
Log into the router admin panel and navigate to System Status or use CLI command 'show version' if available.Verify Fix Applied:
After updating, confirm the firmware version is above V100R014 and test that POST requests to /api/wizard/networkSetup no longer execute arbitrary commands.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /api/wizard/networkSetup with command injection patterns (e.g., shell metacharacters like ;, |, &).
- Log entries showing unexpected command execution or system changes.
Network Indicators:
- Anomalous HTTP traffic to the router's IP on port 80/443 targeting the vulnerable endpoint.
- Increased outbound connections from the router post-exploitation.
SIEM Query:
source_ip:router_ip AND http_method:POST AND uri:"/api/wizard/networkSetup" AND (payload:*;* OR payload:*|* OR payload:*&*)🔗 References
- https://github.com/Qwen11/CVE_store/blob/main/H3C/vulnerability%20Information_1.md
- https://vuldb.com/?ctiid.300749
- https://vuldb.com/?id.300749
- https://vuldb.com/?submit.520494
- https://www.h3c.com/cn/Service/Document_Software/Software_Download/Consume_product/
- https://zhiliao.h3c.com/theme/details/229784
