CVE-2017-3894 : Exploit Details and Defense Strategies

BlackBerry Unified Endpoint Manager and BES12 are affected by a stored cross-site scripting vulnerability that allows attackers to perform actions as a Management Console administrator.

Understanding CVE-2017-3894

A stored cross-site scripting vulnerability in BlackBerry Unified Endpoint Manager and BES12 enables attackers to execute actions using the privileges of a Management Console administrator.

What is CVE-2017-3894?

The Management Console of BlackBerry Unified Endpoint Manager version 12.6.1 and earlier, as well as all versions of BES12, have a vulnerability known as stored cross-site scripting (XSS). This vulnerability allows attackers to carry out actions using the privileges of a Management Console administrator by uploading a harmful script.

The Impact of CVE-2017-3894

Attackers can exploit this vulnerability to execute actions as a Management Console administrator.
By convincing a target administrator to access the specific location where the malicious script is stored, attackers can carry out unauthorized actions.

Technical Details of CVE-2017-3894

A stored cross-site scripting vulnerability affecting BlackBerry Unified Endpoint Manager and BES12.

Vulnerability Description

Type: Stored Cross-Site Scripting (XSS)
The vulnerability allows attackers to execute actions as a Management Console administrator.

Affected Systems and Versions

Unified Endpoint Manager: before version 12.6.2
BES12: all versions

Exploitation Mechanism

Attackers upload a harmful script and persuade a target administrator to access the specific location within the Management Console where the script is stored.

Mitigation and Prevention

Steps to address and prevent the CVE-2017-3894 vulnerability.

Immediate Steps to Take

Update BlackBerry Unified Endpoint Manager to version 12.6.2 or later.
Implement security best practices to mitigate XSS vulnerabilities.

Long-Term Security Practices

Regularly educate administrators on identifying and avoiding malicious scripts.
Conduct security assessments and audits to detect and address vulnerabilities.

Patching and Updates

Apply security patches provided by BlackBerry to address the stored cross-site scripting vulnerability.