CVE-2023-53955
📋 TL;DR
This CVE describes an insecure direct object reference vulnerability in SOUND4 IMPACT/FIRST/PULSE/Eco v2.x systems that allows attackers to bypass authorization controls. By manipulating user-supplied input, attackers can access hidden system resources and execute privileged functionalities without proper authentication. Organizations using affected SOUND4 products are vulnerable to unauthorized access.
💻 Affected Systems
- SOUND4 IMPACT
- SOUND4 FIRST
- SOUND4 PULSE
- SOUND4 Eco
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access all system resources, modify configurations, potentially execute arbitrary code, and gain persistent access to the affected systems.
Likely Case
Unauthorized access to sensitive system resources, configuration data, and privileged functionalities leading to data exposure and potential system manipulation.
If Mitigated
Limited impact with proper network segmentation and access controls, though the vulnerability still exists and could be exploited by authenticated users with limited privileges.
🎯 Exploit Status
Exploit details are publicly available on Exploit-DB and other security research sites, making exploitation straightforward for attackers with basic knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in available references
Vendor Advisory: https://web.archive.org/web/20221207074555/https://www.sound4.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates
2. Contact SOUND4 support for patch availability
3. Apply any available patches following vendor instructions
4. Verify the fix by testing authorization controls
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks and limit access to authorized users only
Access Control Enhancement
allImplement additional authentication layers and strict access controls for system resources
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems from untrusted networks
- Deploy web application firewall (WAF) rules to detect and block IDOR exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Test for IDOR vulnerabilities by attempting to access system resources with manipulated object references while monitoring for unauthorized accessCheck Version:
Check system documentation or contact vendor for version identification methodsVerify Fix Applied:
Verify that manipulated object references no longer grant unauthorized access to system resources and that proper authorization checks are enforced📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to system resources
- Failed authorization attempts followed by successful access
- Access to privileged endpoints from unauthorized users
Network Indicators:
- Unusual HTTP requests with manipulated parameters
- Requests to hidden system resources from unauthorized IPs
SIEM Query:
source="web_logs" AND (url CONTAINS "/admin/" OR url CONTAINS "/system/") AND user="unauthorized" AND response_code=200🔗 References
- https://web.archive.org/web/20221207074555/https://www.sound4.com/
- https://www.exploit-db.com/exploits/51169
- https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-authorization-bypass-via-insecure-object-references
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5723.php
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5723.php
