CVE-2018-20211 Explained : Impact and Mitigation

A security vulnerability in ExifTool version 8.32 allows local users to elevate privileges by exploiting DLL Hijacking. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2018-20211

ExifTool version 8.32 is susceptible to a privilege escalation vulnerability through DLL Hijacking.

What is CVE-2018-20211?

The vulnerability in ExifTool version 8.32 enables local users to gain elevated privileges by manipulating a specific folder and placing a malicious file within it.

The Impact of CVE-2018-20211

Attackers can execute arbitrary code with elevated privileges by exploiting this vulnerability.
Version 8.32, released in 2010, is outdated, with subsequent versions addressing this security flaw.

Technical Details of CVE-2018-20211

Examine the specifics of the vulnerability in ExifTool version 8.32.

Vulnerability Description

The flaw involves creating a folder with a victim's username and inserting a malicious Trojan horse file, allowing for DLL Hijacking.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Attackers create a specific folder structure and place a malicious file to execute arbitrary code with elevated privileges.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2018-20211.

Immediate Steps to Take

Avoid using the vulnerable version 8.32 of ExifTool.
Upgrade to a secure version, starting from 9.x released in 2012.

Long-Term Security Practices

Regularly update software to the latest versions to patch known vulnerabilities.
Implement least privilege access to limit the impact of potential exploits.
Conduct security training to educate users on safe practices.

Patching and Updates

Apply patches provided by ExifTool to address the vulnerability and enhance system security.