CVE-2017-2766
📋 TL;DR
This vulnerability allows unauthenticated attackers to change passwords without verification in EMC Documentum eRoom. Affected systems include eRoom versions 7.4.4, 7.4.4 SP1, versions prior to 7.4.5 P04, and versions prior to 7.5.0 P01.
💻 Affected Systems
- EMC Documentum eRoom
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through administrative account takeover leading to data theft, system manipulation, and lateral movement within the network.
Likely Case
Unauthorized access to sensitive documents and user accounts, potentially leading to data exfiltration or privilege escalation.
If Mitigated
Limited impact if strong network segmentation and monitoring are in place, though authentication bypass remains possible.
🎯 Exploit Status
Exploitation requires network access to the eRoom server but no authentication, making it trivial for attackers with access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.4.5 P04 or 7.5.0 P01
Vendor Advisory: https://www.dell.com/support/security/en-us
Restart Required: Yes
Instructions:
1. Download patches from Dell EMC support portal. 2. Apply patch according to vendor documentation. 3. Restart eRoom services. 4. Verify patch installation.
🔧 Temporary Workarounds
Network Isolation
allRestrict network access to eRoom servers to trusted IP addresses only.
Use firewall rules to allow only specific IP ranges to access eRoom ports (typically 80/443)
Authentication Layer
allImplement additional authentication mechanisms like VPN or reverse proxy with MFA.
Configure web application firewall or reverse proxy with additional authentication
🧯 If You Can't Patch
- Isolate eRoom servers in a restricted network segment with no internet access
- Implement strict monitoring for password change attempts and failed logins
🔍 How to Verify
Check if Vulnerable:
Check eRoom version in administration console or via version files in installation directory.Check Version:
Check web interface or consult eRoom administration documentation for version commandVerify Fix Applied:
Verify installed version is 7.4.5 P04 or higher, or 7.5.0 P01 or higher.📡 Detection & Monitoring
Log Indicators:
- Unusual password change requests, multiple failed login attempts followed by successful password reset
Network Indicators:
- HTTP POST requests to password change endpoints from unexpected IP addresses
SIEM Query:
source="eroom.log" AND (event="password_change" OR event="reset_password") AND user="*" | stats count by src_ip