CVE-2018-17411
📋 TL;DR
This CVE describes an XML External Entity (XXE) vulnerability in iWay Data Quality Suite Web Console version 10.6.1.ga-2016-11-20. Attackers can exploit this vulnerability to read arbitrary files from the server, potentially leading to sensitive data exposure or server-side request forgery. Organizations using this specific version of iWay Data Quality Suite Web Console are affected.
💻 Affected Systems
- iWay Data Quality Suite Web Console
📦 What is this software?
Data Quality Suite by Informationbuilders
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise through file read leading to credential theft, followed by lateral movement and data exfiltration.
Likely Case
Unauthorized reading of sensitive server files containing configuration data, credentials, or application source code.
If Mitigated
Limited impact with proper network segmentation and file system permissions restricting access to sensitive files.
🎯 Exploit Status
Public proof-of-concept demonstrates file read capabilities. XXE vulnerabilities are commonly exploited in automated attacks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No vendor advisory found
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Disable XXE Processing
allConfigure the XML parser to disable external entity processing
Modify XML parser configuration to set: FEATURE_SECURE_PROCESSING = true
Set: http://apache.org/xml/features/disallow-doctype-decl = true
Set: http://xml.org/sax/features/external-general-entities = false
Set: http://xml.org/sax/features/external-parameter-entities = false
Input Validation
allImplement strict input validation to reject XML containing DOCTYPE declarations
Implement XML schema validation
Use whitelisting for allowed XML structures
Reject any XML containing <!DOCTYPE or <!ENTITY declarations
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from sensitive data stores
- Deploy a web application firewall (WAF) with XXE protection rules enabled
🔍 How to Verify
Check if Vulnerable:
Test by sending XML with external entity references to the web console endpoints and checking for file content in responsesCheck Version:
Check application version in web interface or configuration filesVerify Fix Applied:
Attempt the same XXE payload after implementing workarounds - should receive error or no file content📡 Detection & Monitoring
Log Indicators:
- XML parsing errors containing file paths
- Unusual file access patterns from web application process
- HTTP requests containing XML with DOCTYPE or ENTITY declarations
Network Indicators:
- HTTP POST requests with XML content to web console endpoints
- Outbound connections from web server to internal systems following XXE exploitation
SIEM Query:
source="web_server_logs" AND (uri="*console*" OR uri="*api*") AND (request_body CONTAINS "<!DOCTYPE" OR request_body CONTAINS "<!ENTITY")