CVE-2024-51476
📋 TL;DR
IBM Concert Software 1.0.5 has an inadequate account lockout mechanism that allows attackers to perform brute force attacks against user credentials. This affects all organizations running vulnerable versions of IBM Concert Software. Attackers can potentially gain unauthorized access to accounts through repeated login attempts.
💻 Affected Systems
- IBM Concert Software
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain administrative access, leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Attackers compromise user accounts with weak passwords, leading to unauthorized access to sensitive data and functionality.
If Mitigated
Attackers are blocked after limited attempts, preventing credential compromise through brute force.
🎯 Exploit Status
Exploitation requires knowledge of valid usernames and ability to make repeated authentication attempts.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.6 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7184961
Restart Required: No
Instructions:
1. Download IBM Concert Software version 1.0.6 or later from IBM support portal. 2. Follow IBM's upgrade documentation for your specific deployment. 3. Verify the account lockout settings are properly configured post-upgrade.
🔧 Temporary Workarounds
Configure Account Lockout Policy
allManually configure account lockout thresholds and durations to prevent brute force attacks
Refer to IBM Concert Software administration guide for lockout configuration commands
Implement Network Controls
allUse firewalls or WAFs to limit login attempts from single IP addresses
Configure rate limiting rules on network devices or WAF
🧯 If You Can't Patch
- Implement strong password policies requiring complex passwords
- Enable multi-factor authentication for all user accounts
🔍 How to Verify
Check if Vulnerable:
Check IBM Concert Software version via admin interface or configuration files. Version 1.0.5 is vulnerable.Check Version:
Check version in admin console or configuration files specific to your deploymentVerify Fix Applied:
Verify version is 1.0.6 or later and test account lockout by attempting multiple failed logins.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts from same IP address
- Account lockout events
- Unusual login patterns
Network Indicators:
- High volume of authentication requests to login endpoints
- Requests from known malicious IPs
SIEM Query:
source="ibm_concert" AND (event_type="failed_login" OR event_type="authentication_failure") | stats count by src_ip, username | where count > 10