CVE-2023-51776

Q: What is the severity of CVE-2023-51776?

CVE-2023-51776 has a CVSS score of 7.8 (HIGH). This vulnerability in Jungo WinDriver allows local attackers to escalate privileges and execute arbitrary code due to improper privilege management. It affects systems running WinDriver versions before 12.1.0, primarily impacting industrial control systems and embedded devices that use this driver development toolkit.

7.8 HIGH

📋 TL;DR

This vulnerability in Jungo WinDriver allows local attackers to escalate privileges and execute arbitrary code due to improper privilege management. It affects systems running WinDriver versions before 12.1.0, primarily impacting industrial control systems and embedded devices that use this driver development toolkit.

💻 Affected Systems

Products:

Jungo WinDriver

Versions: All versions before 12.1.0

Operating Systems: Windows, Linux, Embedded systems supported by WinDriver

Default Config Vulnerable: ⚠️ Yes

Notes: Affects systems using WinDriver for device driver development, particularly in industrial control systems and embedded devices from various manufacturers.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with administrative privileges, enabling installation of persistent malware, data theft, or disruption of critical industrial processes.

🟠

Likely Case

Local privilege escalation allowing attackers to gain elevated permissions, modify system configurations, or execute malicious code within the context of the vulnerable driver.

🟢

If Mitigated

Limited impact if proper access controls, least privilege principles, and network segmentation are implemented, restricting local access to authorized users only.

🌐 Internet-Facing: LOW - This is a local privilege escalation vulnerability requiring local system access, not directly exploitable over the internet.

🏢 Internal Only: HIGH - Local attackers or malware with initial foothold can exploit this to gain elevated privileges and potentially compromise the entire system.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: LOW

Requires local access to the system. The CWE-269 classification suggests improper privilege management that could be exploited through standard local attack vectors.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 12.1.0 and later

Vendor Advisory: https://jungo.com/windriver/versions/

Restart Required: Yes

Instructions:

1. Download WinDriver version 12.1.0 or later from Jungo's website. 2. Uninstall previous versions. 3. Install the updated version. 4. Restart the system. 5. Recompile any custom drivers with the updated toolkit.

🔧 Temporary Workarounds

Restrict local access

all

Limit local user access to systems running vulnerable WinDriver versions to authorized personnel only.

Implement least privilege

all

Run applications and services with minimal necessary privileges to reduce impact of privilege escalation.

🧯 If You Can't Patch

Isolate affected systems using network segmentation to prevent lateral movement
Implement strict access controls and monitoring for systems running vulnerable WinDriver versions

🔍 How to Verify

Check if Vulnerable:

Check WinDriver version in installed programs list or via vendor documentation. Versions below 12.1.0 are vulnerable.

Check Version:

Check via Windows Programs and Features, or consult vendor documentation for version verification methods.

Verify Fix Applied:

Verify WinDriver version is 12.1.0 or higher after update. Check that custom drivers have been recompiled with the updated toolkit.

📡 Detection & Monitoring

Log Indicators:

Unusual privilege escalation events
Suspicious driver loading or modification
Unauthorized access to driver-related processes

Network Indicators:

Unusual outbound connections from systems with WinDriver
Lateral movement attempts from WinDriver systems

SIEM Query:

EventID=4688 OR EventID=4672 AND ProcessName contains 'windriver' OR 'wd'

📊 Metadata

CVE ID: CVE-2023-51776

CVSS v3 Score: 7.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-269

Published: July 2, 2024

Last Updated: March 13, 2025

🔗 References

https://jungo.com/windriver/versions/ Release Notes
https://www.cisa.gov/news-events/ics-advisories/icsa-24-135-04 Third Party Advisory,US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2024-001_en.pdf Third Party Advisory
https://jungo.com/windriver/versions/ Release Notes
https://www.cisa.gov/news-events/ics-advisories/icsa-24-135-04 Third Party Advisory,US Government Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2024-001_en.pdf Third Party Advisory

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Cpu Module Logging Configuration Tool by Mitsubishielectric

Cw Configurator by Mitsubishielectric

Data Transfer by Mitsubishielectric

Data Transfer Classic by Mitsubishielectric

Ezsocket by Mitsubishielectric

Fr Configurator Sw3 by Mitsubishielectric

Fr Configurator2 by Mitsubishielectric

Genesis64 by Mitsubishielectric

Gt Got1000 by Mitsubishielectric

Gt Got2000 by Mitsubishielectric

Gt Softgot1000 by Mitsubishielectric

Gt Softgot2000 by Mitsubishielectric

Gx Developer by Mitsubishielectric

Gx Logviewer by Mitsubishielectric

Gx Works2 by Mitsubishielectric

Gx Works3 by Mitsubishielectric

Iq Works by Mitsubishielectric

Mi Configurator by Mitsubishielectric

Mr Configurator by Mitsubishielectric

Mr Configurator2 by Mitsubishielectric

Mrzjw3 Mc2 Utl Firmware by Mitsubishielectric

Mx Component by Mitsubishielectric

Mx Opc Server Da\/ua by Mitsubishielectric

Numerical Control Device Communication by Mitsubishielectric

Px Developer\/monitor Tool by Mitsubishielectric

Rt Toolbox3 by Mitsubishielectric

Rt Visualbox by Mitsubishielectric

Sw0dnc Mneth B Firmware by Mitsubishielectric

Sw1dnc Ccbd2 B Firmware by Mitsubishielectric

Sw1dnc Ccief B Firmware by Mitsubishielectric

Sw1dnc Ccief J Firmware by Mitsubishielectric

Sw1dnc Mnetg B Firmware by Mitsubishielectric

Sw1dnc Qsccf B Firmware by Mitsubishielectric

Sw1dnd Emsdk B Firmware by Mitsubishielectric

Windriver by Jungo