CVE-2023-54343
📋 TL;DR
QWE DL 2.0.1 mobile web application has a persistent cross-site scripting (XSS) vulnerability in path parameters that allows attackers to inject malicious scripts. When exploited, this can lead to session hijacking and manipulation of application modules. All users of QWE DL 2.0.1 mobile web application are affected.
💻 Affected Systems
- QWE DL mobile web application
⚠️ Risk & Real-World Impact
Worst Case
Attackers could hijack user sessions, steal credentials, manipulate application functionality, and potentially compromise user devices through further exploitation.
Likely Case
Attackers would inject malicious scripts to steal session cookies or credentials, leading to unauthorized access to user accounts and potential data theft.
If Mitigated
With proper input validation and output encoding, the vulnerability would be prevented, maintaining normal application functionality.
🎯 Exploit Status
Path parameter manipulation is a common attack vector requiring minimal technical skill to exploit once the vulnerability is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Contact QWE DL vendor for patch information. 2. If patch is available, update to the fixed version. 3. Test the application after patching.
🔧 Temporary Workarounds
Implement Input Validation
allAdd server-side validation to sanitize and validate all path parameters before processing.
Enable Content Security Policy
allImplement CSP headers to restrict script execution from untrusted sources.
Content-Security-Policy: default-src 'self'
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with XSS protection rules.
- Disable the vulnerable functionality or restrict access to authenticated users only.
🔍 How to Verify
Check if Vulnerable:
Test path parameters with XSS payloads like <script>alert('XSS')</script> and check if scripts execute persistently.Check Version:
Check application version in settings or about section of the QWE DL mobile web application.Verify Fix Applied:
Retest with XSS payloads after implementing fixes; scripts should not execute and input should be properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual path parameter values containing script tags or JavaScript code in web server logs.
- Multiple failed login attempts or session anomalies following suspicious path requests.
Network Indicators:
- HTTP requests with malicious script content in path parameters.
- Unexpected outbound connections from the application to external domains.
SIEM Query:
source="web_server" AND (path="*<script>*" OR path="*javascript:*")