CVE-2017-12645 : What You Need to Know

An XSS vulnerability exists in Liferay Portal before version 7.0 CE GA4, which can be exploited through an invalid portletId.

Understanding CVE-2017-12645

This CVE describes a cross-site scripting (XSS) vulnerability in Liferay Portal.

What is CVE-2017-12645?

This CVE identifies an XSS vulnerability in Liferay Portal versions prior to 7.0 CE GA4, which can be triggered by using an invalid portletId.

The Impact of CVE-2017-12645

The vulnerability allows attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2017-12645

This section provides technical details of the vulnerability.

Vulnerability Description

The XSS vulnerability in Liferay Portal before 7.0 CE GA4 is caused by inadequate validation of user-supplied input, specifically the portletId parameter.

Affected Systems and Versions

Liferay Portal versions prior to 7.0 CE GA4 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the portletId parameter, which gets executed in the user's browser.

Mitigation and Prevention

Protecting systems from CVE-2017-12645 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Liferay Portal to version 7.0 CE GA4 or later to mitigate the vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and audit web applications for security vulnerabilities.
Educate users and developers on secure coding practices to prevent XSS vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Liferay for the Portal software.