CVE-2019-15253 : Security Advisory and Response

Cisco Digital Network Architecture Center Stored Cross-Site Scripting Vulnerability

Understanding CVE-2019-15253

This CVE involves a stored cross-site scripting (XSS) vulnerability in the web-based management interface of Cisco Digital Network Architecture (DNA) Center.

What is CVE-2019-15253?

An authenticated remote attacker could exploit a vulnerability in the web-based management interface of Cisco DNA Center to conduct a stored XSS attack.
The issue arises from inadequate validation of user input, allowing an attacker to execute arbitrary script code or access sensitive information.

The Impact of CVE-2019-15253

CVSS Base Score: 5.4 (Medium Severity)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Changed
Confidentiality and Integrity Impact: Low
Availability Impact: None

Technical Details of CVE-2019-15253

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to perform a stored XSS attack via the web-based management interface of Cisco DNA Center.

Affected Systems and Versions

Affected Product: Cisco Digital Network Architecture Center (DNA Center)
Vulnerable Versions: 1.3.0.6, 1.3.1.4

Exploitation Mechanism

The attacker needs administrator credentials to exploit the vulnerability.
By tricking a user into clicking a malicious link, the attacker can execute arbitrary script code.

Mitigation and Prevention

Protect your systems from CVE-2019-15253 with the following steps:

Immediate Steps to Take

Ensure all users are cautious when clicking on links or visiting unknown websites.
Regularly monitor and update Cisco DNA Center software to the latest patched versions.

Long-Term Security Practices

Implement strict input validation mechanisms in web interfaces to prevent XSS attacks.
Conduct regular security training for administrators and users to raise awareness of social engineering tactics.

Patching and Updates

Apply security patches provided by Cisco for the affected versions of DNA Center software.