CVE-2017-1000149 : Exploit Details and Defense Strategies

This CVE involves a vulnerability in Mahara versions 1.10 before 1.10.9, 15.04 before 15.04.6, and 15.10 before 15.10.2 that allows for XSS exploitation through the use of window.opener.

Understanding CVE-2017-1000149

This CVE identifies a cross-site scripting (XSS) vulnerability in specific versions of Mahara.

What is CVE-2017-1000149?

Versions 1.10 prior to 1.10.9 of Mahara, along with versions 15.04 prior to 15.04.6 and 15.10 prior to 15.10.2, are susceptible to XSS due to the utilization of window.opener in conjunction with target="_blank" and window.open().

The Impact of CVE-2017-1000149

The vulnerability can be exploited through XSS, potentially leading to unauthorized access, data theft, and other malicious activities.

Technical Details of CVE-2017-1000149

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in Mahara versions allows for XSS attacks through the use of window.opener, target="_blank", and window.open().

Affected Systems and Versions

Mahara versions 1.10 before 1.10.9
Mahara versions 15.04 before 15.04.6
Mahara versions 15.10 before 15.10.2

Exploitation Mechanism

The vulnerability can be exploited by malicious actors utilizing XSS techniques through the identified functions.

Mitigation and Prevention

Protecting systems from the CVE and preventing exploitation is crucial.

Immediate Steps to Take

Update Mahara to versions 1.10.9, 15.04.6, or 15.10.2 to mitigate the vulnerability.
Implement content security policies to reduce the risk of XSS attacks.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities.
Educate users on safe browsing practices to prevent XSS attacks.

Patching and Updates

Stay informed about security updates and patches released by Mahara.