CVE-2021-1374 : Exploit Details and Defense Strategies
Learn about CVE-2021-1374, a vulnerability in Cisco IOS XE Wireless Controller software that allows attackers to conduct cross-site scripting attacks. Discover the impact, affected systems, and mitigation steps.
A vulnerability in the web-based management interface of Cisco IOS XE Wireless Controller software for the Catalyst 9000 Family of switches could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack. This vulnerability, assigned CVE-2021-1374, was published on March 24, 2021.
Understanding CVE-2021-1374
This section will provide an in-depth look into the nature and impact of the CVE-2021-1374 vulnerability.
What is CVE-2021-1374?
The vulnerability in the web-based management interface of Cisco IOS XE Wireless Controller software for the Catalyst 9000 Family of switches allows an attacker to execute arbitrary script code or access sensitive information remotely.
The Impact of CVE-2021-1374
The impact of this vulnerability includes the potential for an attacker to conduct a cross-site scripting (XSS) attack against another user of the affected device's web-based management interface.
Technical Details of CVE-2021-1374
In this section, we will explore the technical aspects of the CVE-2021-1374 vulnerability.
Vulnerability Description
The vulnerability is a result of insufficient validation of user-supplied input by the web-based management interface of the affected device, allowing an attacker to add malicious code and persuade another user to trigger the exploit.
Affected Systems and Versions
The vulnerability affects Cisco IOS XE Wireless Controller software for the Catalyst 9000 Family of switches.
Exploitation Mechanism
An attacker needs to authenticate to the device as a high-privileged user, insert malicious configurations, and convince another user to interact with the compromised field to execute the exploit.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-1374, follow the steps outlined below.
Immediate Steps to Take
Ensure that user input is properly validated to prevent the execution of arbitrary scripts. Regularly monitor and access the management interface securely.
Long-Term Security Practices
Implement strict security protocols, conduct regular security audits, and educate users about the dangers of interacting with unverified content.
Patching and Updates
Stay informed about security advisories from Cisco and apply relevant patches promptly to address known vulnerabilities.