CVE-2018-0448 : Security Advisory and Response

Cisco Digital Network Architecture Center Authentication Bypass Vulnerability

Understanding CVE-2018-0448

This CVE involves a critical vulnerability in the identity management service of Cisco Digital Network Architecture (DNA) Center, potentially allowing unauthorized remote attackers to bypass authentication and take full control over identity management functions.

What is CVE-2018-0448?

The vulnerability stems from inadequate security restrictions for crucial management functions within Cisco DNA Center, enabling attackers to exploit the flaw by sending legitimate identity management requests to the system. Successful exploitation grants unauthorized access to view, manipulate existing users, and create new users.

The Impact of CVE-2018-0448

The CVSS base score of 9.8 (out of 10) indicates the severity of this vulnerability, highlighting the high risk and potential for significant damage if exploited. Attackers could gain complete control over identity management functions, compromising system integrity and user data.

Technical Details of CVE-2018-0448

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Cisco DNA Center's identity management service allows unauthenticated remote attackers to bypass authentication, leading to unauthorized access and control over identity management functions due to insufficient security restrictions.

Affected Systems and Versions

Product: Cisco Digital Network Architecture Center (DNA Center)
Vendor: Cisco
Version: Not applicable (n/a)

Exploitation Mechanism

To exploit this vulnerability, attackers need to send valid identity management requests to the affected system, enabling them to view, modify existing users, and create new users without proper authorization.

Mitigation and Prevention

Effective strategies to mitigate and prevent exploitation of this vulnerability.

Immediate Steps to Take

Apply security patches and updates provided by Cisco promptly.
Implement network segmentation to limit access to critical systems.
Monitor network traffic for any suspicious activity or unauthorized access attempts.

Long-Term Security Practices

Conduct regular security audits and assessments to identify and address vulnerabilities proactively.
Educate system administrators and users about best security practices and awareness.
Employ strong authentication mechanisms and access controls to prevent unauthorized access.

Patching and Updates

Regularly check for security advisories and updates from Cisco to ensure the latest patches are applied promptly.