CVE-2018-11650 : What You Need to Know

Graylog before version 2.4.4 is vulnerable to XSS attacks due to unescaped text in notifications, specifically in toastr and util/UserNotification.js.

Understanding CVE-2018-11650

This CVE identifies a security vulnerability in Graylog versions prior to v2.4.4 that could potentially lead to cross-site scripting (XSS) attacks.

What is CVE-2018-11650?

The version of Graylog before v2.4.4 has a security vulnerability related to unescaped text in notifications, particularly in toastr and util/UserNotification.js, posing a risk of XSS attacks.

The Impact of CVE-2018-11650

The vulnerability in Graylog could allow attackers to execute malicious scripts in the context of an unsuspecting user's session, leading to various security risks.

Technical Details of CVE-2018-11650

Graylog's security issue is detailed below:

Vulnerability Description

The vulnerability involves unescaped text in notifications, specifically in toastr and util/UserNotification.js, which can be exploited for XSS attacks.

Affected Systems and Versions

Product: Graylog
Vendor: N/A
Versions Affected: All versions prior to v2.4.4

Exploitation Mechanism

Attackers can exploit the unescaped text in notifications to inject and execute malicious scripts, potentially compromising user data and system integrity.

Mitigation and Prevention

To address CVE-2018-11650, consider the following steps:

Immediate Steps to Take

Upgrade Graylog to version 2.4.4 or later to mitigate the XSS vulnerability.
Regularly monitor and audit notifications and user inputs for suspicious content.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Educate users on safe browsing practices and the risks of executing untrusted scripts.

Patching and Updates

Stay informed about security updates and patches released by Graylog to address vulnerabilities like CVE-2018-11650.