CVE-2023-20060
📋 TL;DR
This vulnerability allows unauthenticated remote attackers to conduct cross-site scripting (XSS) attacks against users of Cisco Prime Collaboration Deployment's web management interface. Attackers can trick users into clicking malicious links to execute arbitrary JavaScript in the context of the interface, potentially stealing session cookies or performing actions as the victim. All users of affected Cisco Prime Collaboration Deployment versions are vulnerable.
💻 Affected Systems
- Cisco Prime Collaboration Deployment
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker steals administrator session cookies, gains full administrative access to the deployment system, and potentially compromises the entire collaboration infrastructure.
Likely Case
Attacker steals user session data, performs limited unauthorized actions within the web interface, or captures sensitive information displayed in the browser.
If Mitigated
With proper network segmentation and access controls, impact is limited to the web interface itself without lateral movement to backend systems.
🎯 Exploit Status
Exploitation requires social engineering to trick users into clicking malicious links
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Cisco advisory for specific fixed versions
Vendor Advisory: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-pcd-xss-jDXpjm7
Restart Required: Yes
Instructions:
1. Review Cisco advisory for compatible fixed version. 2. Backup current configuration. 3. Download and install the update from Cisco's software download portal. 4. Restart the Prime Collaboration Deployment service.
🧯 If You Can't Patch
- Restrict network access to the web interface using firewall rules to only trusted IP addresses
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check current version via web interface admin panel or CLI, compare against Cisco advisoryCheck Version:
Check via web interface: Admin > System > About, or via CLI: show versionVerify Fix Applied:
Verify installed version matches or exceeds the fixed version listed in Cisco advisory📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript execution in web interface logs
- Multiple failed login attempts followed by successful login from different IP
Network Indicators:
- HTTP requests containing suspicious script tags or JavaScript payloads to the management interface
SIEM Query:
web.url:*cisco-prime* AND (web.query:*<script* OR web.query:*javascript:* OR web.query:*onclick=*)