CVE-2018-20159 : Exploit Details and Defense Strategies

A vulnerability in i-doit open version 1.11.2 allows Remote Code Execution through mishandling of ZIP archives, enabling attackers to upload malicious files to the website directory.

Understanding CVE-2018-20159

This CVE identifies a security flaw in i-doit open version 1.11.2 that permits Remote Code Execution by exploiting the handling of ZIP archives.

What is CVE-2018-20159?

The vulnerability in i-doit open version 1.11.2 allows authenticated users with administrator privileges to upload any files to the primary directory of the website. Attackers can leverage this flaw by uploading a ".php" file within a ".zip" file, as the system accepts ZIP archives as plugins when added through specific actions.

The Impact of CVE-2018-20159

The exploitation of this vulnerability can lead to Remote Code Execution, potentially allowing attackers to take control of the affected system and execute arbitrary commands.

Technical Details of CVE-2018-20159

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw arises from the mishandling of ZIP archives in i-doit open version 1.11.2, allowing malicious files to be uploaded to the main website directory.

Affected Systems and Versions

Product: i-doit open
Version: 1.11.2

Exploitation Mechanism

Attackers upload a ".php" file within a ".zip" file to the primary directory of the website.
The system accepts ZIP archives as plugins when added through specific actions.
The ".zip" file must include a package.json file to be accepted.

Mitigation and Prevention

Protecting systems from CVE-2018-20159 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update i-doit open to a patched version that addresses the vulnerability.
Restrict file upload capabilities to prevent unauthorized uploads.
Monitor file uploads for suspicious activity.

Long-Term Security Practices

Regularly review and update security configurations.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Apply security patches provided by the software vendor to fix the vulnerability and enhance system security.