CVE-2023-5570
📋 TL;DR
CVE-2023-5570 is an improper protection vulnerability in Inohom Home Manager Gateway that allows attackers to perform account footprinting through exposed error messages and alert signals. This affects Home Manager Gateway versions before 1.27.12, potentially exposing user account information to unauthorized parties.
💻 Affected Systems
- Inohom Home Manager Gateway
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could enumerate valid user accounts, leading to targeted credential attacks, account takeover, or privacy violations of home automation users.
Likely Case
Information disclosure allowing attackers to identify valid user accounts for further social engineering or credential stuffing attacks.
If Mitigated
Limited information exposure with proper network segmentation and access controls in place.
🎯 Exploit Status
The vulnerability involves improper protection of error messages, suggesting relatively straightforward exploitation through network requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.27.12
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-23-0609
Restart Required: Yes
Instructions:
1. Access gateway admin interface. 2. Check current version. 3. If below 1.27.12, download and apply firmware update 1.27.12 from vendor. 4. Reboot gateway after update.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Home Manager Gateway from untrusted networks
Access Control Lists
allRestrict network access to gateway management interface
🧯 If You Can't Patch
- Place gateway behind firewall with strict inbound/outbound rules
- Monitor network traffic for unusual error message patterns
🔍 How to Verify
Check if Vulnerable:
Check gateway firmware version via admin interface or SSH if availableCheck Version:
Check via web interface at http://[gateway-ip]/admin or vendor-specific CLIVerify Fix Applied:
Confirm version is 1.27.12 or higher in admin interface📡 Detection & Monitoring
Log Indicators:
- Unusual error message patterns
- Multiple failed authentication attempts with different usernames
Network Indicators:
- Repeated HTTP requests to error endpoints
- Unusual traffic patterns to gateway management interface
SIEM Query:
source_ip="gateway_ip" AND (http_status="4xx" OR http_status="5xx") AND count > threshold