CVE-2023-53966
📋 TL;DR
CVE-2023-53966 is a format string vulnerability in SOUND4 LinkAndShare Transmitter 1.1.2 that allows attackers to trigger memory stack overflows via malicious environment variables. This could lead to arbitrary code execution or application crashes. Organizations using this specific version of the software are affected.
💻 Affected Systems
- SOUND4 LinkAndShare Transmitter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with SYSTEM/root privileges leading to complete system compromise
Likely Case
Application crash causing denial of service and potential information disclosure
If Mitigated
Limited impact with proper network segmentation and exploit prevention controls
🎯 Exploit Status
Exploit code is publicly available on Exploit-DB (ID: 51259)
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://web.archive.org/web/20221207074555/https://www.sound4.com/
Restart Required: No
Instructions:
1. Check vendor website for updates
2. No official patch available as of current information
3. Consider workarounds or alternative software
🔧 Temporary Workarounds
Environment Variable Sanitization
linuxImplement strict validation of environment variables before passing to the application
export USERNAME="$(echo $USERNAME | tr -cd '[:alnum:]')"
Application Sandboxing
linuxRun the application in a restricted environment with limited privileges
firejail --net=none --private ./linkandshare
🧯 If You Can't Patch
- Remove or disable SOUND4 LinkAndShare Transmitter 1.1.2 from production systems
- Implement strict network segmentation to isolate vulnerable systems
🔍 How to Verify
Check if Vulnerable:
Check if SOUND4 LinkAndShare Transmitter version 1.1.2 is installed on the systemCheck Version:
Check application documentation or installation directory for version informationVerify Fix Applied:
Verify that version 1.1.2 is no longer present or has been replaced with a patched version📡 Detection & Monitoring
Log Indicators:
- Application crash logs with memory access violations
- Unusual process termination events
Network Indicators:
- Unusual outbound connections from the application process
SIEM Query:
process_name:"linkandshare" AND (event_type:"crash" OR exit_code:139)🔗 References
- https://web.archive.org/web/20221207074555/https://www.sound4.com/
- https://www.exploit-db.com/exploits/51259
- https://www.vulncheck.com/advisories/sound-linkandshare-transmitter-format-string-stack-buffer-overflow
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5744.php
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5744.php
