CVE-2021-1548 : Security Advisory and Response

This CVE-2021-1548 article provides an overview of a command injection vulnerability in Cisco Small Business Wireless Access Points. Read on to understand the impact, technical details, and mitigation steps.

Understanding CVE-2021-1548

Cisco Small Business Wireless Access Points are affected by multiple vulnerabilities that could allow a remote attacker to execute arbitrary commands on the device.

What is CVE-2021-1548?

The vulnerability stems from improper validation of user input in the web-based management interface of Cisco Small Business Wireless Access Points. An authenticated attacker could leverage this flaw to perform command injection attacks, ultimately gaining root privileges on the device.

The Impact of CVE-2021-1548

The impact of this vulnerability is rated as medium with a CVSS base score of 4.7. Successful exploitation could lead to unauthorized command execution with elevated privileges on the affected device.

Technical Details of CVE-2021-1548

These technical details shed light on the nature of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows an authenticated attacker to execute arbitrary commands with root privileges on Cisco Small Business Wireless Access Points by sending crafted HTTP requests to the web-based management interface.

Affected Systems and Versions

The vulnerability affects certain Cisco Small Business Wireless Access Points in the 100, 300, and 500 series.

Exploitation Mechanism

To exploit CVE-2021-1548, an attacker needs valid administrative credentials for the affected device. By sending malicious HTTP requests, the attacker can perform command injections.

Mitigation and Prevention

Discover the necessary steps to secure your system and prevent potential exploitation of the vulnerability.

Immediate Steps to Take

It is crucial to apply security patches released by Cisco to address the vulnerability. Additionally, ensure strict access control and monitoring of administrative credentials.

Long-Term Security Practices

Implement regular security updates, conduct security assessments, and enforce the principle of least privilege to mitigate the risk of command injection attacks.

Patching and Updates

Stay informed about security advisories from Cisco and promptly apply patches to protect your Cisco Small Business Wireless Access Points from known vulnerabilities.