CVE-2010-1432
📋 TL;DR
Joomla! Core 1.5.x has an information disclosure vulnerability where attackers can use negative values for limit and offset parameters to access sensitive data. This affects Joomla! 1.5.0 through 1.5.15. The exposed information could help attackers plan further attacks.
💻 Affected Systems
- Joomla! Core
📦 What is this software?
Joomla\! by Joomla
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain sensitive configuration data, database credentials, or user information that enables complete system compromise through follow-up attacks.
Likely Case
Attackers access internal system information, configuration details, or partial data that assists in reconnaissance for more targeted attacks.
If Mitigated
Limited exposure of non-critical system information with no direct path to system compromise.
🎯 Exploit Status
Exploitation involves sending HTTP requests with negative parameters; no authentication required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.16
Vendor Advisory: https://developer.joomla.org/security-centre/311-20100423-core-negative-values-for-limit-and-offset.html
Restart Required: No
Instructions:
1. Backup your Joomla! installation and database. 2. Download Joomla! 1.5.16 or later. 3. Replace core files with patched versions. 4. Verify functionality after update.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to reject negative values for limit and offset parameters
Modify Joomla! core files to validate integer parameters as positive values
Web Application Firewall Rule
allBlock requests containing negative numeric parameters
Add WAF rule: deny requests with parameters containing negative numbers
🧯 If You Can't Patch
- Implement strict input validation at application layer
- Deploy web application firewall with rules blocking negative parameter values
🔍 How to Verify
Check if Vulnerable:
Test by sending HTTP requests with negative limit or offset parameters to Joomla! endpointsCheck Version:
Check Joomla! administration panel or view includes/version.php fileVerify Fix Applied:
Verify Joomla! version is 1.5.16 or later and test that negative parameters no longer return data📡 Detection & Monitoring
Log Indicators:
- HTTP requests with negative limit or offset parameters in access logs
- Unusual parameter patterns in application logs
Network Indicators:
- HTTP traffic containing negative numeric parameters
- Repeated requests with varying negative values
SIEM Query:
source="web_logs" AND (parameter="limit:-*" OR parameter="offset:-*")🔗 References
- https://developer.joomla.org/security-centre/311-20100423-core-negative-values-for-limit-and-offset.html
- https://www.acunetix.com/vulnerabilities/web/joomla-core-1-5-x-information-disclosure-1-5-0-1-5-15/
- https://developer.joomla.org/security-centre/311-20100423-core-negative-values-for-limit-and-offset.html
- https://www.acunetix.com/vulnerabilities/web/joomla-core-1-5-x-information-disclosure-1-5-0-1-5-15/
