CVE-2020-3518 : Security Advisory and Response

A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) Software could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack.

Understanding CVE-2020-3518

This CVE involves a security flaw in Cisco Data Center Network Manager that could be exploited by an authenticated remote attacker to execute a cross-site scripting attack.

What is CVE-2020-3518?

The vulnerability in Cisco DCNM allows an attacker to perform a cross-site scripting attack by manipulating user input on the web-based management interface.

The Impact of CVE-2020-3518

The vulnerability could enable an attacker to execute arbitrary script code within the affected interface or access sensitive browser-based information.

Technical Details of CVE-2020-3518

This section provides more technical insights into the CVE.

Vulnerability Description

The flaw arises from the lack of proper validation of user-supplied input in the web-based management interface of Cisco DCNM.

Affected Systems and Versions

Product: Cisco Data Center Network Manager
Vendor: Cisco
Affected Version: Not applicable

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Changed
The attacker could exploit the vulnerability by tricking a user into clicking a malicious link.

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Cisco recommends updating to the latest version of DCNM software.
Be cautious of clicking on unverified links in the management interface.

Long-Term Security Practices

Regularly monitor and update security patches for DCNM.
Educate users on safe browsing practices to prevent XSS attacks.

Patching and Updates

Apply patches and updates provided by Cisco to fix the vulnerability.