CVE-2025-70545
📋 TL;DR
A stored cross-site scripting vulnerability in the PPC (Belden) ONT 2K05X router's web management interface allows remote, unauthenticated attackers to inject malicious JavaScript that persists and executes when users access the interface. This affects organizations using the vulnerable router firmware version, potentially compromising network management security.
💻 Affected Systems
- PPC (Belden) ONT 2K05X router
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router compromise leading to network interception, credential theft, and lateral movement into connected systems.
Likely Case
Session hijacking, credential theft from administrators, and unauthorized configuration changes to the router.
If Mitigated
Limited impact if interface is not internet-facing and access is restricted to trusted users only.
🎯 Exploit Status
GitHub repository contains exploit details; unauthenticated nature makes exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://ppc.com
Restart Required: No
Instructions:
Check vendor website for firmware updates; if available, download and apply through web interface or console.
🔧 Temporary Workarounds
Disable Web Management Interface
allTemporarily disable the vulnerable web interface to prevent exploitation.
Use console/SSH to disable HTTP/HTTPS services: 'no ip http server' and 'no ip http secure-server' (Cisco-like syntax; adjust for actual CLI)
Restrict Access with ACLs
allImplement access control lists to limit web interface access to trusted IPs only.
Configure firewall rules to allow only specific management IPs to access router web interface on ports 80/443
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict network segmentation
- Implement web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface (System > Status) or CLI command 'show version'; if v1.1.9_206L, likely vulnerable.Check Version:
show versionVerify Fix Applied:
After applying any firmware update, verify version is no longer v1.1.9_206L; test XSS payload injection in CGI parameters.📡 Detection & Monitoring
Log Indicators:
- Unusual CGI parameter values in web server logs
- Multiple failed login attempts followed by successful access
Network Indicators:
- HTTP requests with JavaScript payloads in parameters to router IP
- Unexpected outbound connections from router
SIEM Query:
source="router_logs" AND (url="*cgi*" AND (param="*<script>*" OR param="*javascript:*"))