CVE-2021-1272 : Vulnerability Insights and Analysis

A vulnerability in the session validation feature of Cisco Data Center Network Manager (DCNM) allows an unauthenticated attacker to conduct a server-side request forgery (SSRF) attack, potentially bypassing access controls. This could result in unauthorized access to network devices managed by the system.

Understanding CVE-2021-1272

This CVE details a security vulnerability in Cisco Data Center Network Manager that could lead to server-side request forgery (SSRF) attacks.

What is CVE-2021-1272?

A vulnerability in the session validation of Cisco Data Center Network Manager enables an unauthenticated attacker to perform an SSRF attack, bypassing access controls.

The Impact of CVE-2021-1272

Successful exploitation of this vulnerability could allow unauthorized access to the Device Manager application, compromising network devices managed by the system.

Technical Details of CVE-2021-1272

This section provides more insight into the vulnerability including its description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The flaw in the session validation feature of Cisco DCNM allows an attacker to send crafted HTTP requests, bypassing access controls and gaining unauthorized entry into the network device manager.

Affected Systems and Versions

The vulnerability impacts the Cisco Data Center Network Manager; the specific affected version is n/a.

Exploitation Mechanism

An attacker can exploit this vulnerability by sending a malicious HTTP request to an authenticated user of the DCNM web application, leading to an SSRF attack.

Mitigation and Prevention

In this section, you will find information on how to mitigate the risks associated with CVE-2021-1272.

Immediate Steps to Take

To prevent exploitation, users should apply patches as soon as they are released by Cisco. In the meantime, monitor network activity for any unusual behavior.

Long-Term Security Practices

Regularly update and patch the Cisco DCNM software to ensure protection against known vulnerabilities. Train employees on identifying and reporting suspicious activities.

Patching and Updates

Keep abreast of security advisories from Cisco and promptly apply any necessary updates to the DCNM to enhance the security posture of your network infrastructure.