CVE-2020-4795
📋 TL;DR
IBM Security Identity Governance and Intelligence 5.2.6 contains an information disclosure vulnerability where an attacker can access sensitive data by sending specially crafted HTTP requests. This affects organizations using IBM Security Identity Governance and Intelligence 5.2.6 without proper patching. The vulnerability could expose confidential information to unauthorized users.
💻 Affected Systems
- IBM Security Identity Governance and Intelligence
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of sensitive identity governance data including user credentials, access policies, and privileged account information leading to full system compromise.
Likely Case
Unauthorized access to sensitive configuration data, user information, or system metadata that could facilitate further attacks.
If Mitigated
Limited exposure of non-critical system information with proper network segmentation and access controls in place.
🎯 Exploit Status
Exploitation requires sending specially crafted HTTP requests but no authentication is needed. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply interim fix or upgrade as per IBM advisory
Vendor Advisory: https://www.ibm.com/support/pages/node/6413399
Restart Required: Yes
Instructions:
1. Review IBM advisory at https://www.ibm.com/support/pages/node/6413399
2. Apply the recommended interim fix or upgrade to a patched version
3. Restart the IBM Security Identity Governance and Intelligence service
4. Verify the fix is applied successfully
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to IBM Security Identity Governance and Intelligence to only trusted sources
# Configure firewall rules to limit access
# Example: iptables -A INPUT -p tcp --dport <IBM_PORT> -s <TRUSTED_NETWORK> -j ACCEPT
# Example: iptables -A INPUT -p tcp --dport <IBM_PORT> -j DROP
Web Application Firewall
allImplement WAF rules to block suspicious HTTP requests patterns
# Configure WAF to inspect and block unusual HTTP request patterns
# Example ModSecurity rule: SecRule REQUEST_URI "@rx suspicious_pattern" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted IP addresses only
- Deploy web application firewall with rules to detect and block suspicious HTTP request patterns
🔍 How to Verify
Check if Vulnerable:
Check if running IBM Security Identity Governance and Intelligence version 5.2.6 via admin console or version check commandsCheck Version:
# Check version through IBM administration interface or product documentationVerify Fix Applied:
Verify patch application through IBM fix verification procedures and test that specially crafted HTTP requests no longer return sensitive information📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP request patterns to IBM Security Identity Governance and Intelligence endpoints
- Multiple failed or unusual authentication attempts
- Access to sensitive endpoints from unexpected sources
Network Indicators:
- Unusual HTTP traffic patterns to IBM Security Identity Governance and Intelligence ports
- Requests with unusual parameters or headers
SIEM Query:
source="ibm_security_logs" AND (http_request contains "suspicious_pattern" OR http_status=200 AND response_size>threshold)