CVE-2020-1771 Explained : Impact and Mitigation

A detailed description of CVE-2020-1771, highlighting the possible XSS vulnerability in the OTRS Community Edition and OTRS.

Understanding CVE-2020-1771

Possible XSS in Customer user address book discovered in OTRS Community Edition and OTRS.

What is CVE-2020-1771?

A vulnerability that allows an attacker to craft a malicious article containing JavaScript, leading to code execution when a user opens a link to the customer address book in OTRS.

The Impact of CVE-2020-1771

The vulnerability affects OTRS Community Edition versions 6.0.26 and earlier, as well as OTRS versions 7.0.15 and earlier, potentially enabling attackers to execute arbitrary code.

Technical Details of CVE-2020-1771

Insight into the technical aspects of this vulnerability.

Vulnerability Description

Attacker can insert JavaScript in an article linked to the customer address book
Missing parameter encoding allows execution of JavaScript

Affected Systems and Versions

((OTRS)) Community Edition: 6.0.26 and prior versions
OTRS: 7.0.15 and prior versions

Exploitation Mechanism

Crafted article with malicious link targeting customer address book
Lack of parameter encoding triggers execution of JavaScript

Mitigation and Prevention

Guidelines for addressing and preventing the CVE-2020-1771 vulnerability.

Immediate Steps to Take

Upgrade to OTRS 7.0.16 or ((OTRS)) Community Edition 6.0.27
Apply the patch provided for ((OTRS)) Community Edition 6

Long-Term Security Practices

Regularly update OTRS and ((OTRS)) Community Edition
Educate users on identifying and avoiding suspicious links

Patching and Updates

Patch available for ((OTRS)) Community Edition 6: Patch Link provided here