CVE-2021-29903
📋 TL;DR
CVE-2021-29903 is a SQL injection vulnerability in IBM Sterling B2B Integrator Standard Edition that allows remote attackers to execute arbitrary SQL commands. This could enable attackers to view, modify, or delete database information. Organizations running affected versions (5.2.6.0 through 6.1.1.0) are at risk.
💻 Affected Systems
- IBM Sterling B2B Integrator Standard Edition
📦 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 connected systems
Likely Case
Data exfiltration, unauthorized data modification, and potential privilege escalation
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited and tooling exists for automated exploitation
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply the fix as specified in IBM Security Bulletin
Vendor Advisory: https://www.ibm.com/support/pages/node/6495919
Restart Required: Yes
Instructions:
1. Review IBM Security Bulletin. 2. Apply the recommended fix or upgrade to a non-vulnerable version. 3. Restart the Sterling B2B Integrator service. 4. Verify the fix is applied.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for all database interactions
Network Segmentation
allRestrict network access to the Sterling B2B Integrator to only trusted sources
🧯 If You Can't Patch
- Implement a Web Application Firewall (WAF) with SQL injection protection rules
- Restrict database user permissions to minimum required privileges
🔍 How to Verify
Check if Vulnerable:
Check the Sterling B2B Integrator version against the affected range (5.2.6.0 through 6.1.1.0)Check Version:
Check the product version through the Sterling B2B Integrator administration console or configuration filesVerify Fix Applied:
Verify the version is updated beyond 6.1.1.0 or that the IBM-provided fix is applied📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns
- Multiple failed login attempts followed by SQL errors
- Database error messages in application logs
Network Indicators:
- SQL keywords in HTTP requests (SELECT, UNION, INSERT, etc.)
- Unusual database connection patterns
SIEM Query:
source="sterling_logs" AND ("sql error" OR "database error" OR "syntax error")