CVE-2024-0429

7.3 HIGH

📋 TL;DR

A buffer overflow vulnerability in Hex Workshop 6.7 allows attackers to trigger a denial of service by manipulating command line arguments to corrupt Structured Exception Handler records. This affects users running Hex Workshop 6.7 on Windows systems. The vulnerability can cause the application to crash and become unavailable.

💻 Affected Systems

Products:
  • Hex Workshop
Versions: Version 6.7
Operating Systems: Windows
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects Hex Workshop version 6.7; earlier or later versions may not be vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete service disruption of Hex Workshop, potentially causing data loss for unsaved work and interrupting critical hex editing operations.

🟠

Likely Case

Application crash requiring restart, temporary disruption of hex editing workflows.

🟢

If Mitigated

Minimal impact if proper input validation and exception handling are implemented.

🌐 Internet-Facing: LOW - Hex Workshop is typically a desktop application not directly internet-exposed.
🏢 Internal Only: MEDIUM - Internal users could exploit this to disrupt colleagues' work or cause application instability.

🎯 Exploit Status

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

Exploitation requires local access or ability to pass malicious command line arguments to the application.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/buffer-overflow-vulnerability-hex-workshop

Restart Required: No

Instructions:

1. Check vendor website for updated version. 2. If available, download and install updated version. 3. Remove vulnerable version 6.7.

🔧 Temporary Workarounds

Restrict Command Line Access

windows

Prevent untrusted users or processes from passing command line arguments to Hex Workshop.

Application Whitelisting

windows

Use application control solutions to restrict execution of Hex Workshop to trusted contexts only.

🧯 If You Can't Patch

  • Restrict user permissions to prevent untrusted users from running Hex Workshop
  • Monitor for abnormal application crashes and investigate potential exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check Hex Workshop version: Open Hex Workshop → Help → About. If version is 6.7, system is vulnerable.

Check Version:

Not applicable - check via application GUI Help → About menu

Verify Fix Applied:

Verify installed version is not 6.7. Check vendor site for patched version availability.

📡 Detection & Monitoring

Log Indicators:

  • Application crash logs for Hex Workshop
  • Windows Event Logs showing application faults

Network Indicators:

  • Not applicable - local exploitation only

SIEM Query:

EventID=1000 OR EventID=1001 AND ProcessName="Hex Workshop.exe"

🔗 References

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