CVE-2019-9116 Explained : Impact and Mitigation

In Sublime Text 3 version 3.1.1 build 3176, a DLL hijacking vulnerability exists on 32-bit Windows platforms, allowing the loading of malicious DLL files when opening specific files. The vendor attributes this issue to a flaw in Windows.

Understanding CVE-2019-9116

In this CVE, a DLL hijacking vulnerability in Sublime Text 3 version 3.1.1 build 3176 on 32-bit Windows platforms enables the loading of malicious DLL files.

What is CVE-2019-9116?

This CVE describes a scenario where a victim using sublime_text.exe to open a .txt file within an attacker's folder can inadvertently load malicious DLL files, leading to potential exploitation.

The Impact of CVE-2019-9116

The vulnerability allows threat actors to execute arbitrary code on a victim's system, potentially leading to further compromise or data theft.

Technical Details of CVE-2019-9116

In-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from the improper loading of DLL files in Sublime Text 3, facilitating DLL hijacking on 32-bit Windows systems.

Affected Systems and Versions

Sublime Text 3 version 3.1.1 build 3176 on 32-bit Windows platforms

Exploitation Mechanism

Victim opens a .txt file using sublime_text.exe within an attacker's folder
Malicious DLL files like api-ms-win-core-fibers-l1-1-1.dll are loaded

Mitigation and Prevention

Measures to address and prevent the vulnerability.

Immediate Steps to Take

Avoid opening files from untrusted sources
Regularly update Sublime Text to the latest version

Long-Term Security Practices

Implement file integrity monitoring to detect unauthorized changes
Use application whitelisting to control executable files

Patching and Updates

Apply patches and updates provided by Sublime Text to address the vulnerability