CVE-2024-51175
📋 TL;DR
This vulnerability in H3C S1526 switches allows remote attackers to access sensitive configuration files via the S1526.cfg component. Attackers can potentially obtain network configuration details, credentials, and other sensitive information. Organizations using H3C S1526 switches are affected.
💻 Affected Systems
- H3C S1526 switch
⚠️ 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 network compromise through credential theft, configuration tampering, and lateral movement across the network infrastructure.
Likely Case
Sensitive configuration data exposure including passwords, network topology, and management settings leading to reconnaissance and targeted attacks.
If Mitigated
Limited information disclosure with no direct path to system compromise if proper network segmentation and access controls are implemented.
🎯 Exploit Status
The vulnerability is documented with technical details in public repositories, making exploitation straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Check H3C vendor website for security advisories and firmware updates. Consider workarounds or replacement if no fix is forthcoming.
🔧 Temporary Workarounds
Restrict network access
linuxBlock external access to switch management interfaces using firewall rules
iptables -A INPUT -p tcp --dport [switch-management-port] -j DROP
iptables -A INPUT -s [trusted-networks] -p tcp --dport [switch-management-port] -j ACCEPT
Change default credentials
allEnsure all switch credentials are changed from defaults and use strong passwords
configure terminal
username [admin] privilege 15 password [strong-password]
🧯 If You Can't Patch
- Segment switch management network from user/data networks
- Implement strict access controls and monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Attempt to access S1526.cfg file via HTTP/HTTPS requests to the switch management interface. Check if configuration files are accessible without proper authentication.Check Version:
show version (via switch CLI)Verify Fix Applied:
Verify that S1526.cfg file is no longer accessible via unauthenticated requests. Test with authenticated access to confirm legitimate functionality remains.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to S1526.cfg
- Multiple failed authentication attempts followed by configuration file access
Network Indicators:
- Unusual HTTP/HTTPS requests to switch IPs targeting .cfg files
- Traffic from unexpected sources to switch management ports
SIEM Query:
source_ip=[switch_ip] AND (url="*S1526.cfg" OR url="*.cfg") AND http_status=200