CVE-2023-34999

8.4 HIGH

📋 TL;DR

A command injection vulnerability in RTS VLink Virtual Matrix Software allows authenticated attackers to execute arbitrary commands via the admin web interface. This affects versions v5 before 5.7.6 and v6 before 6.5.0, potentially compromising the entire system.

💻 Affected Systems

Products:
  • RTS VLink Virtual Matrix Software
Versions: v5 versions < 5.7.6, v6 versions < 6.5.0
Operating Systems: Windows, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Requires admin web interface access. Default installations with exposed admin interfaces are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining complete control over the affected device, potentially pivoting to other network systems.

🟠

Likely Case

Unauthorized command execution leading to data theft, service disruption, or installation of malware.

🟢

If Mitigated

Limited impact if proper network segmentation and access controls prevent exploitation attempts.

🌐 Internet-Facing: HIGH - Admin web interfaces exposed to internet are directly exploitable by authenticated attackers.
🏢 Internal Only: MEDIUM - Requires internal network access and admin credentials, but still poses significant risk.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Requires admin credentials. Exploitation is straightforward once authenticated.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: v5.7.6 or v6.5.0 and later

Vendor Advisory: https://psirt.bosch.com/security-advisories/BOSCH-SA-893251-BT.html

Restart Required: Yes

Instructions:

1. Download latest version from official Bosch/RTS website. 2. Backup configuration. 3. Install update following vendor instructions. 4. Restart the service/system.

🔧 Temporary Workarounds

Restrict Admin Interface Access

all

Limit access to admin web interface using firewall rules or network segmentation.

Use Strong Authentication

all

Implement multi-factor authentication and strong password policies for admin accounts.

🧯 If You Can't Patch

  • Isolate affected systems in separate VLAN with strict firewall rules
  • Implement web application firewall (WAF) with command injection protection rules

🔍 How to Verify

Check if Vulnerable:

Check software version in admin interface or via system information. Versions v5 < 5.7.6 or v6 < 6.5.0 are vulnerable.

Check Version:

Check version in web interface at /admin or system info page

Verify Fix Applied:

Verify version is v5.7.6 or higher, or v6.5.0 or higher. Test admin interface functionality remains intact.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in system logs
  • Multiple failed login attempts followed by successful admin login
  • Suspicious processes spawned from web service

Network Indicators:

  • Unusual outbound connections from the matrix system
  • HTTP requests with command injection patterns to admin endpoints

SIEM Query:

source="web_logs" AND (url="*/admin*" AND (cmd="*" OR exec="*" OR system="*"))

🔗 References

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