CVE-2021-1249 : Exploit Details and Defense Strategies

Cisco Data Center Network Manager (DCNM) has been found to have multiple vulnerabilities in its web-based management interface that could be exploited by a remote attacker with network-operator privileges to execute cross-site scripting (XSS) and reflected file download (RFD) attacks.

Understanding CVE-2021-1249

This CVE relates to security issues identified in the Cisco Data Center Network Manager (DCNM).

What is CVE-2021-1249?

CVE-2021-1249 pertains to a series of vulnerabilities within the web-based management interface of Cisco DCNM, potentially enabling unauthorized remote attackers to perform harmful actions like XSS or RFD attacks.

The Impact of CVE-2021-1249

The vulnerabilities in Cisco DCNM can lead to severe consequences, allowing attackers with specific privileges to manipulate and compromise systems through XSS and RFD attack vectors.

Technical Details of CVE-2021-1249

Here are some specific technical aspects of this CVE:

Vulnerability Description

The vulnerability involves flaws in the web-based management interface of Cisco DCNM that could permit unauthorized access and malicious activities.

Affected Systems and Versions

The Cisco Data Center Network Manager version affected by this CVE is not applicable (n/a).

Exploitation Mechanism

The exploitation of these vulnerabilities requires network-operator privileges and can be conducted remotely through XSS or RFD attacks.

Mitigation and Prevention

To address CVE-2021-1249, it is crucial to take the following measures:

Immediate Steps to Take

Ensure all security patches and updates related to Cisco DCNM are promptly applied.
Monitor network activity for any signs of unauthorized access or suspicious behavior.

Long-Term Security Practices

Regularly review and update security configurations for Cisco DCNM to mitigate potential risks.
Conduct security training and awareness programs for network operators to recognize and respond to security threats.

Patching and Updates

Stay informed about security advisories from Cisco regarding DCNM and apply recommended patches and updates immediately.