CVE-2025-60262
📋 TL;DR
A vsftpd misconfiguration vulnerability in H3C wireless devices allows anonymous FTP uploads to be owned by the root user. Remote attackers can exploit this to gain root-level control over affected devices. This affects H3C M102G wireless controllers and BA1500L wireless access points.
💻 Affected Systems
- H3C M102G wireless controller
- H3C BA1500L wireless access point
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise with root-level access, allowing attackers to install persistent backdoors, exfiltrate sensitive data, pivot to internal networks, or render devices inoperable.
Likely Case
Attackers gain root access to vulnerable devices, enabling them to modify configurations, intercept network traffic, and potentially compromise connected wireless clients.
If Mitigated
With proper network segmentation and access controls, impact is limited to the affected device only, preventing lateral movement to other systems.
🎯 Exploit Status
Exploitation requires only anonymous FTP access and basic knowledge of FTP commands. No authentication or special tools needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available in provided references
Restart Required: No
Instructions:
1. Check H3C official security advisories for patches. 2. If patch available, download from H3C support portal. 3. Apply patch following vendor instructions. 4. Verify vsftpd configuration is corrected.
🔧 Temporary Workarounds
Disable anonymous FTP access
linuxModify vsftpd configuration to disable anonymous login
Edit /etc/vsftpd.conf or equivalent config file
Set anonymous_enable=NO
Restart vsftpd service
Disable vsftpd service
linuxCompletely disable FTP service if not required
systemctl stop vsftpd
systemctl disable vsftpd
Remove vsftpd package if possible
🧯 If You Can't Patch
- Network segmentation: Isolate affected devices in separate VLAN with strict firewall rules
- Access control: Block FTP ports (20,21) at network perimeter and internal firewalls
🔍 How to Verify
Check if Vulnerable:
Test anonymous FTP access: ftp [device_ip] with username 'anonymous' and any password. If login successful and uploads possible, device is vulnerable.Check Version:
Check device web interface or CLI for firmware version: show version or equivalent commandVerify Fix Applied:
Attempt anonymous FTP login after applying fixes. Successful login should be denied. Check vsftpd configuration for anonymous_enable=NO.📡 Detection & Monitoring
Log Indicators:
- Anonymous FTP login attempts in vsftpd logs
- File uploads via anonymous FTP sessions
- Root-owned files created via FTP
Network Indicators:
- FTP traffic to affected devices on ports 20/21
- Anonymous FTP login attempts from external IPs
SIEM Query:
source="vsftpd.log" AND "anonymous" AND ("LOGIN" OR "UPLOAD")