CVE-2023-20208 : Security Advisory and Response

This CVE-2023-20208 involves a vulnerability found in the web-based management interface of Cisco Identity Services Engine Software. The issue could be exploited by an authenticated, remote attacker to carry out a cross-site scripting (XSS) attack on a user utilizing the web-based management interface of an affected device.

Understanding CVE-2023-20208

This section will delve into the specifics of CVE-2023-20208, outlining the impact, technical details, affected systems and versions, as well as mitigation strategies.

What is CVE-2023-20208?

CVE-2023-20208 is a vulnerability within Cisco ISE's web-based management interface that enables a remote attacker to execute an XSS attack on a user.

The Impact of CVE-2023-20208

The impact of this vulnerability is considered medium with a CVSS base score of 4.8. It requires high privileges and user interaction but has low confidentiality and integrity impacts.

Technical Details of CVE-2023-20208

In this section, we will explore the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows an authenticated remote attacker to conduct an XSS attack on a user of the web-based management interface of an affected Cisco ISE device.

Affected Systems and Versions

The following versions of Cisco Identity Services Engine Software are identified as affected: 3.0.0, 3.0.0 p1 to p7, 3.1.0, and 3.1.0 p1 to p5.

Exploitation Mechanism

The attacker needs to be authenticated and remote to exploit the vulnerability. By manipulating input fields in the web-based management interface, they can execute an XSS attack.

Mitigation and Prevention

Mitigating CVE-2023-20208 involves taking immediate steps, implementing long-term security practices, and ensuring patching and updates are in place.

Immediate Steps to Take

Cisco recommends applying available updates and patches promptly.
Organizations should restrict access to the web-based management interface to authorized users only.

Long-Term Security Practices

Regularly monitor and audit web traffic for suspicious activity.
Conduct security training for users to raise awareness about phishing and social engineering attacks.

Patching and Updates

Ensure that the Cisco Identity Services Engine Software is updated to the latest version to fix the vulnerability. Regularly check for security advisories from Cisco to stay informed about patches and updates.