CVE-2025-3221
📋 TL;DR
IBM InfoSphere Information Server versions 11.7.0.0 through 11.7.1.6 contain a resource exhaustion vulnerability due to insufficient validation of incoming requests. A remote attacker could send specially crafted requests to cause denial of service, potentially crashing or severely degrading the service. Organizations running affected versions of IBM InfoSphere Information Server are vulnerable.
💻 Affected Systems
- IBM InfoSphere Information Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete service outage of IBM InfoSphere Information Server, disrupting data integration and ETL processes across the organization.
Likely Case
Service degradation or intermittent crashes affecting data processing workflows and business operations.
If Mitigated
Minimal impact with proper network segmentation, rate limiting, and monitoring in place.
🎯 Exploit Status
The vulnerability description suggests unauthenticated remote exploitation with low complexity due to insufficient input validation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 11.7.1.7 and later
Vendor Advisory: https://www.ibm.com/support/pages/node/7235496
Restart Required: Yes
Instructions:
1. Download IBM InfoSphere Information Server 11.7.1.7 or later from IBM Fix Central. 2. Apply the fix pack following IBM's installation documentation. 3. Restart all InfoSphere Information Server services. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation and Access Control
allRestrict network access to IBM InfoSphere Information Server to only trusted sources using firewalls or network security groups.
Rate Limiting
allImplement rate limiting at the network or application level to prevent resource exhaustion attacks.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate InfoSphere Information Server from untrusted networks
- Deploy web application firewall (WAF) with rate limiting and request validation rules
🔍 How to Verify
Check if Vulnerable:
Check the installed version of IBM InfoSphere Information Server via the administrative console or by examining installation directories.Check Version:
Check the version in the InfoSphere Information Server administrative console under Help > About, or examine the version.txt file in the installation directory.Verify Fix Applied:
Verify the version is 11.7.1.7 or later and test service functionality under normal and high-load conditions.📡 Detection & Monitoring
Log Indicators:
- Unusual spike in incoming requests
- Service crash or restart logs
- Resource exhaustion warnings in system logs
Network Indicators:
- High volume of requests to InfoSphere Information Server endpoints from single or multiple sources
- Abnormal request patterns
SIEM Query:
source="infosphere_logs" AND (event_type="service_crash" OR message="resource exhaustion" OR request_count > threshold)