CVE-2024-51320
📋 TL;DR
This CVE describes a Cross-Site Scripting (XSS) vulnerability in Zucchetti Ad Hoc Infinity 2.4 that allows authenticated attackers to achieve Remote Code Execution via specific servlet components. The vulnerability affects authenticated users of the Zucchetti Ad Hoc Infinity platform. Attackers can inject malicious scripts that execute in victims' browsers, potentially leading to full system compromise.
💻 Affected Systems
- Zucchetti Ad Hoc Infinity
📦 What is this software?
Ad Hoc Infinity by Zucchetti
⚠️ Risk & Real-World Impact
Worst Case
Authenticated attacker achieves remote code execution, potentially gaining full control of the server, accessing sensitive data, and pivoting to other systems.
Likely Case
Attackers steal session cookies, perform actions as authenticated users, and potentially escalate to RCE through chained attacks.
If Mitigated
With proper input validation and output encoding, the XSS would be prevented, limiting impact to minor data leakage.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of the vulnerable endpoints. The XSS to RCE chain increases complexity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Contact Zucchetti for patch availability. 2. Apply vendor-provided patches. 3. Test in non-production environment first. 4. Deploy to production systems.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and output encoding for the affected servlet endpoints
Web Application Firewall Rules
allDeploy WAF rules to block malicious requests to /servlet/gsdm_fsave_htmltmp and /servlet/gsdm_btlk_openfile
🧯 If You Can't Patch
- Implement strict access controls to limit who can access the vulnerable endpoints
- Deploy network segmentation to isolate affected systems from critical assets
🔍 How to Verify
Check if Vulnerable:
Test the /servlet/gsdm_fsave_htmltmp and /servlet/gsdm_btlk_openfile endpoints with XSS payloads while authenticatedCheck Version:
Check application version through admin interface or configuration filesVerify Fix Applied:
Retest the endpoints with XSS payloads after applying mitigations to confirm they no longer execute📡 Detection & Monitoring
Log Indicators:
- Unusual requests to /servlet/gsdm_fsave_htmltmp or /servlet/gsdm_btlk_openfile with script tags or encoded payloads
- Multiple failed authentication attempts followed by successful login and servlet access
Network Indicators:
- HTTP requests containing script injection patterns to the vulnerable endpoints
- Unusual outbound connections from the application server following servlet access
SIEM Query:
source="web_server" AND (uri="/servlet/gsdm_fsave_htmltmp" OR uri="/servlet/gsdm_btlk_openfile") AND (payload CONTAINS "<script>" OR payload CONTAINS "javascript:")