CVE-2021-1542 : Vulnerability Insights and Analysis

Multiple vulnerabilities in the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an attacker to hijack a user session, execute arbitrary commands, conduct cross-site scripting and HTML injection attacks. The impact includes a high base severity score of 7.2.

Understanding CVE-2021-1542

This CVE refers to multiple vulnerabilities in Cisco Small Business 220 Series Smart Switches, potentially enabling unauthorized access and execution of commands.

What is CVE-2021-1542?

The CVE-2021-1542 relates to security flaws in the web-based management interface of Cisco Small Business 220 Series Smart Switches, allowing attackers to perform critical actions like session hijacking, command execution, XSS, and HTML injection attacks.

The Impact of CVE-2021-1542

The vulnerabilities have a high severity level, with a CVSS base score of 7.2, potentially leading to unauthorized access, data manipulation, and system compromise.

Technical Details of CVE-2021-1542

The technical aspects of CVE-2021-1542 include vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerabilities allow attackers to compromise the system by hijacking user sessions, executing commands with root privileges, and launching cross-site scripting and HTML injection attacks.

Affected Systems and Versions

The affected product is the Cisco Small Business 220 Series Smart Plus Switches, with version details not applicable as per the advisory.

Exploitation Mechanism

The exploitation of these vulnerabilities occurs through the web-based management interface, enabling attackers to gain unauthorized access and execute commands with heightened privileges.

Mitigation and Prevention

To address CVE-2021-1542, immediate and long-term security measures are crucial along with timely patching and updates.

Immediate Steps to Take

Ensure network security by restricting access to vulnerable switches, monitoring for unauthorized activities, and implementing strong authentication mechanisms.

Long-Term Security Practices

Regular security audits, employee training on safe browsing practices, and staying informed about security advisories are essential for long-term resilience.

Patching and Updates

Apply security patches issued by Cisco promptly, follow best practices for network security, and keep all systems up to date.