CVE-2024-47924
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability in the Boa web server that allows attackers to inject malicious scripts into web pages. When exploited, this could enable session hijacking, credential theft, or defacement of web interfaces. Organizations using Boa web server in vulnerable configurations are affected.
💻 Affected Systems
- Boa web server
⚠️ 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
Complete compromise of web server sessions leading to administrative access, credential theft from all users, and potential pivot to internal network resources.
Likely Case
Session hijacking of authenticated users, credential theft via phishing-style attacks, and website defacement.
If Mitigated
Limited impact with proper input validation and output encoding; potential for minor data leakage but no system compromise.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity; requires user interaction for full impact
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.gov.il/en/Departments/faq/cve_advisories
Restart Required: Yes
Instructions:
1. Check vendor advisory for specific patch details
2. Update to latest Boa version if available
3. Restart web server service
4. Verify fix implementation
🔧 Temporary Workarounds
Implement WAF rules
allDeploy web application firewall with XSS protection rules
Content Security Policy
linuxImplement strict CSP headers to restrict script execution
add_header Content-Security-Policy "default-src 'self'; script-src 'self'" always;
🧯 If You Can't Patch
- Isolate vulnerable systems in network segments with restricted access
- Implement reverse proxy with input sanitization and output encoding
🔍 How to Verify
Check if Vulnerable:
Test web interfaces with XSS payloads like <script>alert('test')</script> in input fields and URL parametersCheck Version:
boa -v or check process/service version informationVerify Fix Applied:
Re-test with XSS payloads after remediation; verify scripts are properly encoded or blocked📡 Detection & Monitoring
Log Indicators:
- Unusual script tags in HTTP requests
- Multiple requests with encoded payloads
- Error logs showing script execution attempts
Network Indicators:
- HTTP requests containing script tags or JavaScript code
- Unusual user-agent strings with script content
SIEM Query:
http.request.uri contains "<script>" OR http.request.body contains "javascript:"