CVE-2024-45254
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability in VaeMendis software that allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects web applications using VaeMendis components, potentially compromising user sessions and data. Organizations running vulnerable versions of VaeMendis software are at risk.
💻 Affected Systems
- VaeMendis
⚠️ 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
Attackers could steal session cookies, perform actions as authenticated users, redirect to malicious sites, or install malware on victim browsers.
Likely Case
Session hijacking, credential theft, defacement of web pages, or phishing attacks against users.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy headers in place.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity and can be exploited without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.gov.il/en/Departments/faq/cve_advisories
Restart Required: No
Instructions:
1. Check the vendor advisory for patch availability. 2. Apply any available security updates. 3. Implement input validation and output encoding if patch not available.
🔧 Temporary Workarounds
Implement Input Validation
allValidate and sanitize all user inputs before processing
Enable Content Security Policy
allImplement CSP headers to restrict script execution sources
Content-Security-Policy: default-src 'self'; script-src 'self'
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable affected features or restrict access to vulnerable components
🔍 How to Verify
Check if Vulnerable:
Test for XSS by injecting script payloads into user input fields and observing if they executeCheck Version:
Check application documentation or configuration files for VaeMendis versionVerify Fix Applied:
Retest XSS payloads after fixes to confirm they are properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual script tags in URL parameters
- Suspicious JavaScript in form submissions
- Multiple failed input validation attempts
Network Indicators:
- HTTP requests containing script tags or JavaScript in parameters
- Unusual redirects to external domains
SIEM Query:
source="web_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")