CVE-2024-54171
📋 TL;DR
IBM EntireX 11.1 has an XML external entity injection vulnerability that allows authenticated attackers to read sensitive files from the server or cause denial of service through resource consumption. This affects organizations using IBM EntireX 11.1 for XML processing. Attackers must have valid credentials to exploit this vulnerability.
💻 Affected Systems
- IBM EntireX
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker reads sensitive system files (passwords, configuration files), potentially leading to full system compromise through credential theft or further exploitation.
Likely Case
Information disclosure of application configuration files or denial of service through memory exhaustion.
If Mitigated
Limited impact due to authentication requirements and network segmentation, with potential for DoS but no data exfiltration.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of XML processing endpoints. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply fix from IBM support
Vendor Advisory: https://www.ibm.com/support/pages/node/7182693
Restart Required: No
Instructions:
1. Review IBM advisory at provided URL
2. Apply the fix provided by IBM support
3. Test XML processing functionality after applying fix
4. No restart required according to advisory
🔧 Temporary Workarounds
Disable XML external entity processing
allConfigure XML parser to disable external entity resolution
Set XML parser properties: FEATURE_SECURE_PROCESSING=true, DISALLOW_DOCTYPE_DECL=true
Input validation and filtering
allImplement input validation to reject XML containing external entity declarations
Implement XML schema validation or regex filtering for DOCTYPE declarations
🧯 If You Can't Patch
- Implement network segmentation to restrict access to XML processing endpoints
- Enable strict authentication and authorization controls for XML processing functions
🔍 How to Verify
Check if Vulnerable:
Test XML endpoints with XXE payloads containing external entity referencesCheck Version:
Check IBM EntireX version through administrative interface or configuration filesVerify Fix Applied:
Test with same XXE payloads after applying fix - should reject or safely process without data leakage📡 Detection & Monitoring
Log Indicators:
- Unusual XML processing errors
- Multiple large XML file processing attempts
- Authentication logs showing repeated access to XML endpoints
Network Indicators:
- HTTP requests containing DOCTYPE declarations with external entities
- Outbound connections to unexpected external systems during XML processing
SIEM Query:
source="*entirex*" AND (message="*DOCTYPE*" OR message="*ENTITY*" OR message="*SYSTEM*")