CVE-2018-16957
📋 TL;DR
CVE-2018-16957 is a critical authentication bypass vulnerability in Oracle WebCenter Interaction 10.3.3 search service. Attackers can use a hardcoded password (i1g2s3c4) to access the search service remotely and extract sensitive information from the WCI installation. This affects all customers running the vulnerable version, especially since Oracle no longer supports this product.
💻 Affected Systems
- Oracle WebCenter Interaction Portal
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of sensitive organizational data stored in WebCenter Interaction, including confidential documents, user information, and business intelligence, potentially leading to data breaches, regulatory fines, and reputational damage.
Likely Case
Unauthorized access to search functionality allowing extraction of sensitive information from the WCI database, potentially exposing internal communications, documents, and user data.
If Mitigated
Limited or no impact if the service is properly isolated, network access is restricted, or compensating controls prevent exploitation.
🎯 Exploit Status
Exploitation is trivial - attackers only need network access to the search service and knowledge of the hardcoded password. Public disclosures include technical details that facilitate exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: N/A
Restart Required: No
Instructions:
No official patch is available since Oracle WebCenter Interaction Portal is out of support. Consider upgrading to supported alternatives or implementing workarounds.
🔧 Temporary Workarounds
Network Segmentation and Access Control
windowsRestrict network access to the Oracle WCI search service (queryd.exe) using firewall rules to only allow connections from authorized systems.
Windows Firewall: netsh advfirewall firewall add rule name="Block WCI Search" dir=in action=block protocol=TCP localport=[PORT] remoteip=any
Replace [PORT] with actual port used by queryd.exe
Service Disablement
windowsDisable the vulnerable search service if it's not essential for business operations.
sc stop "Oracle WCI Search Service"
sc config "Oracle WCI Search Service" start= disabled
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the WCI system from untrusted networks
- Deploy intrusion detection systems to monitor for suspicious access attempts to the search service
🔍 How to Verify
Check if Vulnerable:
Check if Oracle WebCenter Interaction 10.3.3 is installed and if the queryd.exe service is running. Attempt to authenticate to the search service using the hardcoded password i1g2s3c4.Check Version:
Check installation directory for version information or consult system documentation. For Windows: Check Programs and Features or registry at HKEY_LOCAL_MACHINE\SOFTWARE\Oracle\WebCenter InteractionVerify Fix Applied:
Verify that network access to the search service port is blocked or that the service is stopped. Test authentication attempts with the hardcoded password should fail.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts to queryd.exe service
- Unusual search query patterns or large data extraction from WCI
- Network connections to the search service port from unauthorized sources
Network Indicators:
- Traffic to the Oracle WCI search service port (default 7778) from unexpected sources
- Burst of search queries or data transfers from the WCI system
SIEM Query:
source="queryd.exe" OR destination_port=7778 | stats count by src_ip, dest_ip | where count > threshold