CVE-2018-16141 Explained : Impact and Mitigation

A vulnerability in ThinkCMF X2.2.3 allows arbitrary file deletion, potentially compromising Windows servers.

Understanding CVE-2018-16141

This CVE involves a security flaw in ThinkCMF X2.2.3 that enables unauthorized file deletion on Windows servers.

What is CVE-2018-16141?

The vulnerability in ThinkCMF X2.2.3 permits a member user to delete any file on a Windows server by exploiting the do_avatar function in the ProfileController.class.php file.

The Impact of CVE-2018-16141

The vulnerability poses a significant risk as it allows unauthorized users to delete critical files on Windows servers, potentially leading to data loss or system compromise.

Technical Details of CVE-2018-16141

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in ThinkCMF X2.2.3 arises from the improper handling of the imgurl parameter in the do_avatar function, enabling users to delete files using a specific sequence.

Affected Systems and Versions

Affected System: ThinkCMF X2.2.3
Affected Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by manipulating the imgurl parameter with a ..\ sequence, allowing a member user to delete files on a Windows server.

Mitigation and Prevention

Protect your systems from CVE-2018-16141 with these mitigation strategies.

Immediate Steps to Take

Disable the affected functionality if possible.
Implement input validation to prevent malicious input.
Monitor file deletion activities for suspicious behavior.

Long-Term Security Practices

Regularly update and patch ThinkCMF to the latest version.
Conduct security audits to identify and address vulnerabilities proactively.

Patching and Updates

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