CVE-2019-16873 : Security Advisory and Response

An XSS vulnerability exists in versions of Portainer preceding 1.22.1 (first of two issues).

Understanding CVE-2019-16873

An XSS vulnerability in Portainer versions prior to 1.22.1.

What is CVE-2019-16873?

CVE-2019-16873 is an XSS vulnerability found in versions of Portainer before 1.22.1.

The Impact of CVE-2019-16873

This vulnerability could allow attackers to execute malicious scripts in the context of an unsuspecting user's web session, potentially leading to unauthorized actions.

Technical Details of CVE-2019-16873

XSS vulnerability in Portainer versions preceding 1.22.1.

Vulnerability Description

Portainer before 1.22.1 is susceptible to XSS attacks, enabling malicious script execution.

Affected Systems and Versions

Product: Portainer
Vendor: N/A
Versions affected: All versions before 1.22.1

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into input fields or URLs, which are then executed in the context of the victim's browser.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-16873 vulnerability.

Immediate Steps to Take

Upgrade Portainer to version 1.22.1 or later to mitigate the XSS vulnerability.
Implement input validation and output encoding to prevent script injection.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from Portainer to apply patches promptly.