CVE-2023-53963
📋 TL;DR
CVE-2023-53963 is an unauthenticated remote command injection vulnerability in SOUND4 IMPACT/FIRST/PULSE/Eco v2.x systems. Attackers can execute arbitrary shell commands with web server privileges by injecting malicious payloads into the 'password' parameter during login. Organizations using these affected SOUND4 products are at risk.
💻 Affected Systems
- SOUND4 IMPACT
- SOUND4 FIRST
- SOUND4 PULSE
- SOUND4 Eco
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to install malware, exfiltrate sensitive data, pivot to internal networks, or deploy ransomware across connected systems.
Likely Case
Attackers gain initial foothold with web server privileges, then escalate to full system control to deploy backdoors, steal credentials, or disrupt operations.
If Mitigated
Attack is blocked at network perimeter, limited to isolated segment with no critical systems, or detected early before significant damage.
🎯 Exploit Status
Exploit code is publicly available on Exploit-DB (ID 51173). Attack requires no authentication and uses simple command injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://web.archive.org/web/20221207074555/https://www.sound4.com/
Restart Required: No
Instructions:
No official patch available. Check vendor website for updates. Consider workarounds or system replacement if vendor is unresponsive.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allDeploy WAF rules to block command injection patterns in POST parameters, particularly targeting the 'password' field.
Network Segmentation
allIsolate affected systems from internet and restrict access to trusted IP addresses only.
🧯 If You Can't Patch
- Immediately remove affected systems from internet-facing networks
- Implement strict network segmentation and monitor all traffic to/from affected systems
🔍 How to Verify
Check if Vulnerable:
Test by sending a command injection payload (e.g., '; whoami') in the password parameter to login.php or index.php and observing system response.Check Version:
Check web interface or system documentation for version information. No specific command provided by vendor.Verify Fix Applied:
Verify that command injection attempts no longer execute and return appropriate error messages instead of command output.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to login.php/index.php with shell metacharacters in password field
- Web server logs showing command execution patterns
- System logs showing unexpected process execution from web user
Network Indicators:
- HTTP POST requests containing shell commands in parameters
- Outbound connections from web server to unexpected destinations
SIEM Query:
source="web_logs" AND (uri="/login.php" OR uri="/index.php") AND request_method="POST" AND (password="*;*" OR password="*|*" OR password="*`*" OR password="*$(*")🔗 References
- https://web.archive.org/web/20221207074555/https://www.sound4.com/
- https://www.exploit-db.com/exploits/51173
- https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-unauthenticated-remote-command-injection
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5738.php
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5738.php
