CVE-2020-3349 : Exploit Details and Defense Strategies

Cisco Data Center Network Manager (DCNM) has been found to have multiple vulnerabilities in its web-based management interface, potentially allowing remote attackers to conduct cross-site scripting attacks. This CVE details the impact, technical details, and mitigation steps for this vulnerability.

Understanding CVE-2020-3349

This CVE identifies vulnerabilities in the web-based management interface of Cisco Data Center Network Manager (DCNM) that could be exploited by authenticated remote attackers to execute cross-site scripting attacks.

What is CVE-2020-3349?

Multiple vulnerabilities in the web-based management interface of Cisco DCNM could allow attackers to conduct cross-site scripting attacks by exploiting insufficient validation of user input.

The Impact of CVE-2020-3349

These vulnerabilities could enable attackers to execute arbitrary script code within the interface context or access sensitive browser-based information, posing a risk to affected devices and users.

Technical Details of CVE-2020-3349

This section provides a deeper look into the vulnerability affecting Cisco Data Center Network Manager.

Vulnerability Description

The vulnerabilities stem from inadequate validation of user-supplied input in the web-based management interface, allowing attackers to execute cross-site scripting attacks.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can exploit these vulnerabilities by convincing a user to click on a customized link, enabling the execution of arbitrary script code within the interface or access to sensitive browser-based information.

Mitigation and Prevention

Protecting systems from CVE-2020-3349 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Cisco promptly.
Educate users on identifying and avoiding suspicious links or content.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update and patch all software and systems.
Implement network segmentation to limit the impact of potential attacks.
Conduct security training and awareness programs for employees.

Patching and Updates

Cisco may release patches or updates to address the vulnerabilities in Cisco Data Center Network Manager. Stay informed about these releases and apply them as soon as possible.