CVE-2024-8410
📋 TL;DR
This vulnerability allows remote attackers to perform path traversal attacks via the 'sitio' parameter in the /abcd/opac/php/otros_sitios.php file in ABCD ABCD2. This could enable unauthorized file access or directory listing. Organizations running ABCD ABCD2 library management systems up to version 2.2.0-beta-1 are affected.
💻 Affected Systems
- ABCD ABCD2
📦 What is this software?
Abcd by Abcd Community
Abcd by Abcd Community
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, configuration files, or source code, potentially leading to further system compromise or data exposure.
Likely Case
Unauthorized access to files within the web directory, potentially exposing application files, configuration data, or other web-accessible content.
If Mitigated
Limited to reading files within the web server's directory structure if proper file permissions are configured.
🎯 Exploit Status
Exploit details are publicly available in the GitHub repository, making this easy to weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Input Validation and Sanitization
allAdd input validation to reject path traversal sequences in the 'sitio' parameter
Modify /abcd/opac/php/otros_sitios.php to validate input
File Access Restriction
linuxImplement proper file permission controls and restrict web server access to necessary directories only
chmod 640 sensitive files
chown root:www-data web files
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block path traversal patterns
- Restrict network access to the ABCD2 OPAC interface to trusted IP addresses only
🔍 How to Verify
Check if Vulnerable:
Test if the /abcd/opac/php/otros_sitios.php endpoint accepts path traversal sequences in the 'sitio' parameterCheck Version:
Check ABCD2 version in administration interface or configuration filesVerify Fix Applied:
Verify that path traversal attempts are rejected and return appropriate error responses📡 Detection & Monitoring
Log Indicators:
- HTTP requests to otros_sitios.php with suspicious parameters containing '../' or similar sequences
- Unusual file access patterns from web server process
Network Indicators:
- HTTP requests with path traversal payloads in URL parameters
SIEM Query:
web.url:*otros_sitios.php* AND (web.param.sitio:*../* OR web.param.sitio:*..\*)