CVE-2026-0789
📋 TL;DR
This vulnerability in ALGO 8180 IP Audio Alerter devices allows remote attackers to obtain authentication cookies from the web UI response body without authentication. This affects all installations of ALGO 8180 devices with the vulnerable web interface exposed. Attackers can use stolen cookies to potentially gain unauthorized access to device management functions.
💻 Affected Systems
- ALGO 8180 IP Audio Alerter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain valid authentication cookies, gain administrative access to the device, modify alert configurations, disable security features, or use the device as an entry point into the network.
Likely Case
Attackers harvest authentication cookies from exposed devices, potentially gaining read-only or limited administrative access to monitor or modify audio alert settings.
If Mitigated
With proper network segmentation and access controls, impact is limited to information disclosure without ability to pivot to other systems.
🎯 Exploit Status
No authentication required. Simple HTTP requests to vulnerable endpoints can trigger the information disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-26-011/
Restart Required: Yes
Instructions:
1. Contact ALGO vendor for patch availability. 2. Download and apply firmware update. 3. Restart device. 4. Verify web UI no longer leaks authentication cookies.
🔧 Temporary Workarounds
Network Segmentation
allIsolate ALGO 8180 devices from untrusted networks
Access Control Lists
allRestrict web UI access to authorized IP addresses only
🧯 If You Can't Patch
- Place devices behind VPN or jump host with strict authentication
- Monitor network traffic for unusual access patterns to device web UI
🔍 How to Verify
Check if Vulnerable:
Send HTTP requests to device web UI endpoints and check response bodies for authentication cookie leakageCheck Version:
Check device web interface or console for firmware versionVerify Fix Applied:
After patching, verify authentication cookies are no longer present in HTTP responses📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful access
- Unusual source IP addresses accessing web UI
Network Indicators:
- HTTP requests to device web UI from unexpected sources
- Traffic patterns suggesting cookie harvesting
SIEM Query:
source_ip IN (suspicious_ips) AND dest_port=80 AND uri CONTAINS 'algo' OR dest_port=443 AND uri CONTAINS 'algo'