CVE-2020-28646 Explained : Impact and Mitigation

ownCloud owncloud/client before 2.7 allows DLL Injection. The desktop client loaded development plugins from certain directories when they were present.

Understanding CVE-2020-28646

This CVE involves a vulnerability in ownCloud's desktop client that could allow DLL Injection.

What is CVE-2020-28646?

DLL Injection vulnerability in ownCloud's desktop client before version 2.7, where the client could load development plugins from specific directories.

The Impact of CVE-2020-28646

This vulnerability could potentially allow malicious actors to inject and execute arbitrary code on the affected system, leading to unauthorized access and potential system compromise.

Technical Details of CVE-2020-28646

ownCloud owncloud/client before 2.7 is susceptible to DLL Injection.

Vulnerability Description

The desktop client loads development plugins from certain directories, enabling DLL Injection.

Affected Systems and Versions

Product: ownCloud owncloud/client
Vendor: ownCloud
Versions affected: Before 2.7

Exploitation Mechanism

Attackers could place malicious DLL files in specific directories where the desktop client loads plugins, allowing them to execute arbitrary code.

Mitigation and Prevention

Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2020-28646.

Immediate Steps to Take

Update the ownCloud desktop client to version 2.7 or newer to address the vulnerability.
Regularly monitor and restrict access to directories where plugins are loaded.

Long-Term Security Practices

Implement strict plugin loading policies to prevent unauthorized DLL injections.
Conduct regular security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about security advisories from ownCloud and promptly apply patches and updates to the desktop client to ensure protection against known vulnerabilities.