CVE-2016-11024
📋 TL;DR
CVE-2016-11024 is a SQL injection vulnerability in odata4j 0.7.0 that allows attackers to execute arbitrary SQL commands through the ExecuteJPQLQueryCommand.java component. This affects any application using the vulnerable odata4j library to process OData queries. Since the product is discontinued, users must implement workarounds or migrate to alternatives.
💻 Affected Systems
- odata4j
📦 What is this software?
Odata4j by Odata4j Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise allowing data theft, modification, or deletion, and potential remote code execution through database functions.
Likely Case
Unauthorized data access and extraction from the backend database, potentially exposing sensitive information.
If Mitigated
Limited impact with proper input validation and parameterized queries in place, though the vulnerable library remains a risk.
🎯 Exploit Status
SQL injection vulnerabilities are well-understood and easily weaponized. Public discussion exists in odata4j-discuss groups.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None
Vendor Advisory: https://groups.google.com/d/msg/odata4j-discuss/_lBwwXP30g0/Av6zkZMdBwAJ
Restart Required: No
Instructions:
No official patch exists since odata4j is discontinued. Migrate to alternative OData implementations like Apache Olingo or Microsoft OData libraries.
🔧 Temporary Workarounds
Implement Input Validation
allAdd strict input validation for all OData query parameters to reject malicious SQL patterns.
Implement parameter validation in application code before passing to odata4j
Use Parameterized Queries
allModify application to use parameterized queries instead of string concatenation when processing OData queries.
Rewrite query construction to use PreparedStatement with parameter binding
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block SQL injection patterns
- Restrict database user permissions to minimum required for application functionality
🔍 How to Verify
Check if Vulnerable:
Check if application uses odata4j version 0.7.0 in dependencies. Test OData endpoints with SQL injection payloads like ' OR '1'='1.Check Version:
Check Maven pom.xml or Gradle build files for 'odata4j' dependency version 0.7.0Verify Fix Applied:
Verify that SQL injection payloads no longer execute successfully and return appropriate error responses.📡 Detection & Monitoring
Log Indicators:
- Unusual database query patterns
- SQL syntax errors in application logs
- Multiple failed login attempts via OData endpoints
Network Indicators:
- SQL keywords in OData query parameters
- Unusually long query strings to OData endpoints
SIEM Query:
source="application.logs" AND ("SQL syntax" OR "unexpected token" OR "query error") AND "odata"