CVE-2019-9591 Explained : Impact and Mitigation

A reflected Cross-site scripting (XSS) vulnerability in ShoreTel Connect ONSITE software prior to version 19.49.1500.0 allows remote attackers to inject malicious web script or HTML code through the brandUrl parameter.

Understanding CVE-2019-9591

This CVE entry describes a critical security issue in ShoreTel Connect ONSITE software that could lead to unauthorized access and compromise of system integrity.

What is CVE-2019-9591?

The vulnerability enables attackers to insert arbitrary web script or HTML code via the brandUrl parameter, potentially leading to Cross-site scripting attacks.

The Impact of CVE-2019-9591

Exploitation of this vulnerability could result in unauthorized access to sensitive information, compromise of user data, and potential system integrity issues.

Technical Details of CVE-2019-9591

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in ShoreTel Connect ONSITE software allows remote attackers to execute malicious scripts or inject HTML code through the brandUrl parameter.

Affected Systems and Versions

ShoreTel Connect ONSITE software versions prior to 19.49.1500.0 are affected.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious web script or HTML code through the brandUrl parameter, potentially leading to Cross-site scripting attacks.

Mitigation and Prevention

Protecting systems from CVE-2019-9591 requires immediate action and long-term security measures.

Immediate Steps to Take

Update ShoreTel Connect ONSITE software to version 19.49.1500.0 or later to mitigate the vulnerability.
Monitor and filter input to prevent malicious script injection.

Long-Term Security Practices

Regularly update software and apply security patches to prevent known vulnerabilities.
Conduct security audits and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Apply security patches provided by the software vendor promptly to address known vulnerabilities and enhance system security.