CVE-2019-10066 Explained : Impact and Mitigation

Open Ticket Request System (OTRS) versions 7.x through 7.0.6, Community Edition versions 6.0.x through 6.0.17, and OTRSAppointmentCalendar versions 5.0.x through 5.0.12 are affected by a vulnerability that allows a logged-in attacker to execute JavaScript within the system.

Understanding CVE-2019-10066

This CVE identifies a security flaw in OTRS that could be exploited by an attacker with specific permissions to create a malicious calendar appointment.

What is CVE-2019-10066?

An issue in OTRS versions that enables an attacker to execute JavaScript by crafting a calendar appointment.

The Impact of CVE-2019-10066

The vulnerability allows an attacker to run malicious JavaScript code within the OTRS system, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-10066

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in OTRS versions allows a logged-in attacker to create a calendar appointment designed to execute JavaScript within the system.

Affected Systems and Versions

OTRS versions 7.x through 7.0.6
Community Edition versions 6.0.x through 6.0.17
OTRSAppointmentCalendar versions 5.0.x through 5.0.12

Exploitation Mechanism

If an attacker with appropriate permissions is logged into OTRS, they can exploit the vulnerability by creating a specially crafted calendar appointment.

Mitigation and Prevention

Protect your systems from CVE-2019-10066 with the following steps:

Immediate Steps to Take

Update OTRS to the latest patched version.
Restrict user permissions to minimize the impact of potential attacks.

Long-Term Security Practices

Regularly monitor and audit calendar appointments for any suspicious activities.
Educate users on the importance of identifying and reporting unusual calendar entries.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.