CVE-2019-12553

9.8 CRITICAL

📋 TL;DR

CVE-2019-12553 is a heap buffer overflow vulnerability in SweetScape 010 Editor's StrCat function that allows arbitrary memory overwrite, potentially leading to remote code execution. Attackers can exploit this by crafting malicious scripts. Users of 010 Editor version 9.0.1 are affected.

💻 Affected Systems

Products:
  • SweetScape 010 Editor
Versions: 9.0.1
Operating Systems: Windows, macOS, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of 010 Editor 9.0.1 are vulnerable when processing scripts using the StrCat function.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with full system compromise, allowing attacker to install malware, steal data, or pivot to other systems.

🟠

Likely Case

Application crash leading to denial of service, with potential for limited code execution in constrained environments.

🟢

If Mitigated

Application crash without code execution if exploit fails or memory protections are enabled.

🌐 Internet-Facing: LOW (010 Editor is typically not internet-facing, but could be exposed via file uploads or remote scripts)
🏢 Internal Only: MEDIUM (Internal users could exploit via malicious scripts or files within the organization)

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires user interaction to open malicious files or scripts. Public proof-of-concept demonstrates heap overflow.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 9.0.2 and later

Vendor Advisory: https://www.sweetscape.com/010editor/release_notes.html

Restart Required: Yes

Instructions:

1. Download 010 Editor version 9.0.2 or later from SweetScape website. 2. Install the update. 3. Restart the application.

🔧 Temporary Workarounds

Disable script execution

all

Prevent execution of untrusted scripts in 010 Editor

No specific commands - configure via application settings

Restrict file access

all

Limit 010 Editor to trusted directories only

Use OS file permissions to restrict access to untrusted directories

🧯 If You Can't Patch

  • Isolate 010 Editor to dedicated systems with no network access
  • Implement application whitelisting to prevent execution of malicious scripts

🔍 How to Verify

Check if Vulnerable:

Check Help → About in 010 Editor. If version is 9.0.1, system is vulnerable.

Check Version:

010Editor --version (Linux/macOS) or check About dialog (Windows)

Verify Fix Applied:

Verify version is 9.0.2 or later in Help → About menu.

📡 Detection & Monitoring

Log Indicators:

  • Application crashes with memory access violations
  • Unusual script execution patterns

Network Indicators:

  • None - this is a local vulnerability

SIEM Query:

EventID=1000 OR EventID=1001 with process_name='010Editor.exe' AND exception_code=0xc0000005

🔗 References

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