CVE-2025-24346

7.5 HIGH

📋 TL;DR

A vulnerability in the Proxy functionality of ctrlX OS allows authenticated low-privileged attackers to manipulate the /etc/environment file via crafted HTTP requests. This could lead to privilege escalation or system compromise. Affects Bosch ctrlX OS web applications with vulnerable Proxy functionality enabled.

💻 Affected Systems

Products:
  • Bosch ctrlX OS
Versions: ctrlX OS versions prior to 3.20.0
Operating Systems: ctrlX OS (Linux-based)
Default Config Vulnerable: ⚠️ Yes
Notes: Requires Proxy functionality to be enabled and accessible via web interface. Low-privileged authenticated access is needed.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise via privilege escalation to root, allowing arbitrary code execution, data theft, and complete control of affected devices.

🟠

Likely Case

Privilege escalation to higher system privileges, enabling unauthorized configuration changes, service disruption, and lateral movement.

🟢

If Mitigated

Limited impact with proper access controls, network segmentation, and monitoring in place, potentially only affecting isolated components.

🌐 Internet-Facing: HIGH if web interface is exposed to internet, as authenticated low-privileged access could be obtained through various means.
🏢 Internal Only: MEDIUM to HIGH depending on internal network segmentation and authentication controls.

🎯 Exploit Status

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

Exploitation requires authenticated access but uses simple HTTP request manipulation. No public exploit code available as of analysis.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: ctrlX OS 3.20.0 or later

Vendor Advisory: https://psirt.bosch.com/security-advisories/BOSCH-SA-640452.html

Restart Required: Yes

Instructions:

1. Download ctrlX OS version 3.20.0 or later from official Bosch sources. 2. Backup system configuration. 3. Apply update through ctrlX OS update mechanism. 4. Restart system as required. 5. Verify update completion.

🔧 Temporary Workarounds

Disable Proxy functionality

linux

Disable the vulnerable Proxy component if not required for operations

Check ctrlX OS documentation for Proxy disable procedure

Restrict network access

all

Limit access to ctrlX web interface to trusted networks only

Configure firewall rules to restrict access to ctrlX web ports

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate ctrlX devices from critical networks
  • Enforce strong authentication and limit low-privileged user accounts

🔍 How to Verify

Check if Vulnerable:

Check ctrlX OS version via web interface or CLI. Versions below 3.20.0 are vulnerable if Proxy functionality is enabled.

Check Version:

Check via ctrlX web interface System Information or consult device documentation for CLI version check

Verify Fix Applied:

Verify ctrlX OS version is 3.20.0 or later and check that Proxy functionality no longer allows /etc/environment manipulation.

📡 Detection & Monitoring

Log Indicators:

  • Unusual HTTP requests to Proxy endpoints
  • Unauthorized modifications to /etc/environment file
  • Authentication logs showing low-privileged user accessing Proxy functions

Network Indicators:

  • HTTP POST/PUT requests to Proxy endpoints with environment file manipulation patterns
  • Unusual traffic to ctrlX web interface from unexpected sources

SIEM Query:

source="ctrlX" AND (uri="*proxy*" OR file_path="/etc/environment") AND action="modify"

🔗 References

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