CVE-2022-50788
📋 TL;DR
CVE-2022-50788 is an information disclosure vulnerability in SOUND4 IMPACT/FIRST/PULSE/Eco systems that allows unauthenticated attackers to access sensitive log files by directly browsing the /log directory. This exposes system information and potentially sensitive data. Organizations using affected SOUND4 products up to version 2.x are vulnerable.
💻 Affected Systems
- SOUND4 IMPACT
- SOUND4 FIRST
- SOUND4 PULSE
- SOUND4 Eco
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain sensitive system information, credentials, or proprietary data that could lead to further compromise, including lateral movement or full system takeover.
Likely Case
Unauthenticated attackers access system logs containing operational details, configuration information, and potentially user data, enabling reconnaissance for further attacks.
If Mitigated
With proper access controls and network segmentation, impact is limited to information disclosure without leading to system compromise.
🎯 Exploit Status
Exploitation requires only web browser access to the vulnerable directory path. Public proof-of-concept demonstrates direct URL access to /log directory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.sound4.com/
Restart Required: No
Instructions:
1. Contact SOUND4 vendor for patch availability. 2. Check vendor website for security updates. 3. Apply any available patches following vendor instructions.
🔧 Temporary Workarounds
Restrict Web Directory Access
allConfigure web server to block unauthenticated access to /log directory
# Apache: <Directory /path/to/log> Require all denied </Directory>
# Nginx: location /log { deny all; }
Network Access Control
linuxRestrict network access to SOUND4 web interface using firewall rules
# Example iptables: iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Isolate affected systems in separate network segments with strict firewall rules
- Implement web application firewall (WAF) rules to block access to /log directory patterns
🔍 How to Verify
Check if Vulnerable:
Attempt to access http://[target]/log/ in web browser. If directory listing or files are accessible without authentication, system is vulnerable.Check Version:
Check system web interface or contact vendor for version informationVerify Fix Applied:
Attempt same access after remediation. Should receive 403 Forbidden or similar access denied message.📡 Detection & Monitoring
Log Indicators:
- Multiple 200 OK responses to /log/ directory access
- Unusual GET requests to log files from unauthorized IPs
Network Indicators:
- HTTP requests to /log/ paths from external IPs
- Directory traversal patterns in web traffic
SIEM Query:
source="web_logs" AND (uri_path="/log/" OR uri_path LIKE "/log/%") AND response_code=200 AND NOT src_ip IN [authorized_ips]🔗 References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/247921
- https://packetstormsecurity.com/files/170259/SOUND4-IMPACT-FIRST-PULSE-Eco-2.x-Information-Disclosure.html
- https://www.sound4.com/
- https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-information-disclosure-via-log-directory
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5732.php
