CVE-2024-31883
📋 TL;DR
IBM Security Verify Access versions 10.0.0.0 through 10.0.7.1, under certain configurations, are vulnerable to asymmetric resource consumption denial-of-service attacks. Unauthenticated attackers can exploit this to cause service disruption by exhausting system resources. Organizations running affected versions with vulnerable configurations are at risk.
💻 Affected Systems
- IBM Security Verify Access
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete denial of service for IBM Security Verify Access, preventing authentication and access management services from functioning, potentially disrupting business operations.
Likely Case
Degraded performance or temporary service unavailability of the affected IBM Security Verify Access instance.
If Mitigated
Minimal impact with proper network controls and monitoring in place to detect and block anomalous resource consumption patterns.
🎯 Exploit Status
Exploitation requires specific vulnerable configurations but is unauthenticated when those conditions are met.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.0.8.0 and later
Vendor Advisory: https://www.ibm.com/support/pages/node/7158789
Restart Required: Yes
Instructions:
1. Download IBM Security Verify Access 10.0.8.0 or later from IBM Fix Central. 2. Follow IBM's upgrade documentation for your deployment. 3. Apply the update to all affected instances. 4. Restart services as required.
🔧 Temporary Workarounds
Configuration Hardening
allReview and modify configurations to avoid the vulnerable settings that enable this attack.
Network Access Controls
allRestrict network access to IBM Security Verify Access management interfaces to trusted sources only.
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to IBM Security Verify Access instances.
- Deploy rate limiting and resource monitoring to detect and block asymmetric resource consumption attempts.
🔍 How to Verify
Check if Vulnerable:
Check IBM Security Verify Access version via administrative console or CLI. If version is between 10.0.0.0 and 10.0.7.1 inclusive, the system is potentially vulnerable.Check Version:
Use IBM Security Verify Access administrative interface or consult product documentation for version checking commands specific to your deployment.Verify Fix Applied:
Verify version is 10.0.8.0 or later after applying the patch.📡 Detection & Monitoring
Log Indicators:
- Unusual resource consumption patterns
- Multiple unauthenticated requests from single sources
- System performance degradation alerts
Network Indicators:
- High volume of requests to IBM Security Verify Access endpoints from unauthenticated sources
- Abnormal traffic patterns consistent with resource exhaustion attacks
SIEM Query:
source="ibm_verify_access" AND (event_type="resource_exhaustion" OR error_code="DoS")