CVE-2021-29730
📋 TL;DR
CVE-2021-29730 is a SQL injection vulnerability in IBM InfoSphere Information Server 11.7 that allows remote attackers to execute arbitrary SQL commands. This could enable attackers to view, modify, or delete data in the back-end database. Organizations running affected versions of IBM InfoSphere Information Server are at risk.
💻 Affected Systems
- IBM InfoSphere Information Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the database including data theft, data destruction, and potential lateral movement to other systems.
Likely Case
Data exfiltration, unauthorized data modification, and potential privilege escalation within the database.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
SQL injection vulnerabilities are typically easy to exploit with readily available tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fix pack 11.7.1.4 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/6468569
Restart Required: Yes
Instructions:
1. Download the fix pack from IBM Fix Central. 2. Stop all InfoSphere services. 3. Apply the fix pack following IBM documentation. 4. Restart all services. 5. Verify the patch was applied successfully.
🔧 Temporary Workarounds
Input Validation
allImplement strict input validation on all user inputs to the application
Network Segmentation
allRestrict network access to InfoSphere servers to only authorized users and systems
🧯 If You Can't Patch
- Implement web application firewall (WAF) with SQL injection protection rules
- Restrict database permissions to minimum required for application functionality
🔍 How to Verify
Check if Vulnerable:
Check InfoSphere Information Server version - if it's 11.7 and not patched with fix pack 11.7.1.4 or later, it's vulnerable.Check Version:
Check the version through InfoSphere Administration Console or examine installation logsVerify Fix Applied:
Verify the installed version shows fix pack 11.7.1.4 or later is applied.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts followed by SQL errors
- Unexpected database schema changes
Network Indicators:
- Unusual SQL syntax in HTTP requests to InfoSphere endpoints
- Multiple rapid requests with SQL-like payloads
SIEM Query:
source="web_server_logs" AND (url="*InfoSphere*" OR url="*infosphere*") AND (message="*sql*" OR message="*select*" OR message="*union*" OR message="*' OR '1'='1*")