CVE-2021-1437 : Vulnerability Insights and Analysis

A vulnerability in the FlexConnect Upgrade feature of Cisco Aironet Series Access Points Software allows an unauthenticated remote attacker to obtain confidential information from affected devices through an unrestricted TFTP configuration.

Understanding CVE-2021-1437

This CVE involves an information disclosure vulnerability in Cisco Aironet Access Points FlexConnect Upgrade feature.

What is CVE-2021-1437?

The vulnerability in Cisco Aironet Series Access Points Software enables attackers to retrieve sensitive data by exploiting a flaw in the Trivial File Transfer Protocol (TFTP) configuration.

The Impact of CVE-2021-1437

With a CVSS base score of 7.5, this high-severity vulnerability poses a significant risk by allowing unauthorized access to confidential information on affected devices.

Technical Details of CVE-2021-1437

This section provides insights into the specifics of the vulnerability.

Vulnerability Description

The vulnerability arises due to an unrestricted TFTP configuration, enabling attackers to download files from the filesystem of the affected Access Points (AP).

Affected Systems and Versions

The vulnerability affects Cisco Aironet Access Point Software and all versions.

Exploitation Mechanism

Attackers can exploit the vulnerability by sending a specific TFTP request to the affected device, leading to unauthorized download of files.

Mitigation and Prevention

Learn how to safeguard your systems against CVE-2021-1437.

Immediate Steps to Take

Implement security measures to prevent unauthorized access to sensitive information stored on Cisco Aironet Series Access Points.

Long-Term Security Practices

Enforce secure TFTP configurations and continuously monitor for suspicious activities on your network.

Patching and Updates

Stay informed about security patches and updates released by Cisco to address this vulnerability.