CVE-2025-1138
📋 TL;DR
IBM InfoSphere Information Server 11.7 contains an information disclosure vulnerability where authenticated users can access directory listings that reveal sensitive system information. This could provide attackers with reconnaissance data to plan further attacks. Only authenticated users can exploit this vulnerability.
💻 Affected Systems
- IBM InfoSphere Information Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain detailed system information including configuration files, backup locations, and internal paths that could enable more severe attacks like privilege escalation or data exfiltration.
Likely Case
Authenticated users (including low-privilege accounts) discover internal system paths and file structures that aid in reconnaissance for subsequent attacks.
If Mitigated
Limited exposure of non-critical directory information with minimal impact on overall system security.
🎯 Exploit Status
Exploitation requires authenticated access and involves accessing specific directory paths through the web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fix from IBM Security Bulletin
Vendor Advisory: https://www.ibm.com/support/pages/node/7230295
Restart Required: Yes
Instructions:
1. Review IBM Security Bulletin. 2. Download and apply the appropriate fix pack. 3. Restart Information Server services. 4. Verify the fix by testing directory access.
🔧 Temporary Workarounds
Restrict Directory Access
allConfigure web server to deny directory listing for sensitive paths
# Configure Apache: Options -Indexes in httpd.conf
# Configure IIS: Disable directory browsing in IIS Manager
Access Control Hardening
allImplement stricter authentication and authorization controls
# Review and tighten user permissions
# Implement principle of least privilege
🧯 If You Can't Patch
- Implement network segmentation to restrict access to Information Server
- Enhance monitoring for unusual directory access patterns
🔍 How to Verify
Check if Vulnerable:
As authenticated user, attempt to access directory listings through the Information Server web interface and check if sensitive paths are exposed.Check Version:
# On Information Server: Check version through administration console or installation logsVerify Fix Applied:
After applying patch, attempt the same directory access attempts and verify listings are no longer accessible.📡 Detection & Monitoring
Log Indicators:
- Unusual pattern of directory listing requests
- Multiple failed then successful directory access attempts
Network Indicators:
- HTTP requests for directory paths with trailing slashes
- Patterns of reconnaissance-style requests
SIEM Query:
source="infosphere" AND (url="*/" OR url="*?list*") AND response_code=200