CVE-2023-41256 – This vulnerability allows attackers to bypass a... (How to Fix)

Q: What is the severity of CVE-2023-41256?

CVE-2023-41256 has a CVSS score of 9.1 (CRITICAL). This vulnerability allows attackers to bypass authentication mechanisms in Dover Fueling Solutions MAGLINK LX Web Console Configuration, potentially granting unauthorized access to system controls. Organizations using affected versions of this industrial control system software are at risk, particularly in fuel management and distribution environments.

📋 TL;DR

This vulnerability allows attackers to bypass authentication mechanisms in Dover Fueling Solutions MAGLINK LX Web Console Configuration, potentially granting unauthorized access to system controls. Organizations using affected versions of this industrial control system software are at risk, particularly in fuel management and distribution environments.

💻 Affected Systems

Products:

Dover Fueling Solutions MAGLINK LX Web Console Configuration

Versions: 2.5.1, 2.5.2, 2.5.3, 2.6.1, 2.11, 3.0, 3.2, 3.3

Operating Systems: Not specified, likely embedded/industrial OS

Default Config Vulnerable: ⚠️ Yes

Notes: Affects specific versions of industrial fuel management system software used in fuel dispensing environments.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing unauthorized control over fuel dispensing systems, potential fuel theft, operational disruption, or safety system manipulation.

🟠

Likely Case

Unauthorized access to configuration settings, monitoring data, and potentially limited control functions within the fuel management system.

🟢

If Mitigated

Limited impact if proper network segmentation, access controls, and monitoring are in place to detect and prevent unauthorized access attempts.

🌐 Internet-Facing: HIGH - Web console accessible over network with authentication bypass allows remote exploitation.

🏢 Internal Only: HIGH - Even internally, unauthorized users could gain access to sensitive fuel management controls.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Authentication bypass vulnerabilities typically have low exploitation complexity once the bypass method is known.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in provided references - check vendor advisory

Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-250-01

Restart Required: Yes

Instructions:

1. Contact Dover Fueling Solutions for patch information. 2. Apply recommended updates. 3. Restart affected systems. 4. Verify authentication mechanisms are functioning properly.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate MAGLINK systems from untrusted networks and implement strict firewall rules.

Access Control Lists

all

Implement IP-based access restrictions to limit which systems can connect to the web console.

🧯 If You Can't Patch

Implement strict network segmentation to isolate affected systems from untrusted networks
Deploy additional authentication layers (VPN, reverse proxy with authentication) in front of the web console

🔍 How to Verify

Check if Vulnerable:

Check system version against affected versions list and test authentication bypass if authorized.

Check Version:

Check web console interface or system documentation for version information

Verify Fix Applied:

Verify updated version is installed and test that authentication cannot be bypassed.

📡 Detection & Monitoring

Log Indicators:

Failed authentication attempts followed by successful access
Access from unexpected IP addresses
Configuration changes by unauthorized users

Network Indicators:

Unauthenticated HTTP requests to administrative endpoints
Traffic patterns suggesting authentication bypass

SIEM Query:

source="maglink" AND (event_type="auth_failure" OR event_type="config_change") AND user="unknown"

📊 Metadata

CVE ID: CVE-2023-41256

CVSS v3 Score: 9.1 (CRITICAL)

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

CWE: CWE-288

Published: September 11, 2023

Last Updated: November 21, 2024

🔗 References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-250-01 Third Party Advisory,US Government Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-23-250-01 Third Party Advisory,US Government Resource

📤 Share & Export

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🔗 Related Vulnerabilities

If you're affected by CVE-2023-41256, you might also want to check these:

📋 TL;DR

💻 Affected Systems

📦 What is this software?

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

Maglink Lx Web Console Configuration by Doverfuelingsolutions

⚠️ Risk & Real-World Impact

Worst Case

Likely Case

If Mitigated

🎯 Exploit Status

🛠️ Fix & Mitigation

✅ Official Fix

Instructions:

🔧 Temporary Workarounds

Network Segmentation

Access Control Lists

🧯 If You Can't Patch

🔍 How to Verify

Check if Vulnerable:

Check Version:

Verify Fix Applied:

📡 Detection & Monitoring

Log Indicators:

Network Indicators:

SIEM Query:

📊 Metadata

🔗 References

📤 Share & Export

🔗 Related Vulnerabilities