CVE-2021-34827 : Vulnerability Insights and Analysis

This CVE-2021-34827 article provides detailed insights into a vulnerability affecting D-Link DAP-1330 1.13B01 BETA routers, allowing attackers to execute arbitrary code without authentication. Stay informed about the impact, technical details, and mitigation strategies.

Understanding CVE-2021-34827

This section delves into the specifics of the CVE-2021-34827 vulnerability affecting D-Link routers.

What is CVE-2021-34827?

CVE-2021-34827 is a security flaw in D-Link DAP-1330 routers that enables network-adjacent attackers to run arbitrary code without authentication, exploiting a flaw in handling the SOAPAction HTTP header.

The Impact of CVE-2021-34827

The impact of CVE-2021-34827 is rated as HIGH, with significant confidentiality, integrity, and availability risks, allowing attackers to execute code on vulnerable devices.

Technical Details of CVE-2021-34827

Explore the technical aspects of CVE-2021-34827 to understand the vulnerability better.

Vulnerability Description

The vulnerability arises from inadequate validation of user-supplied data length before copying it to a fixed-length buffer, paving the way for a stack-based buffer overflow attack.

Affected Systems and Versions

D-Link DAP-1330 routers running version 1.13B01 BETA are impacted by this vulnerability, exposing them to exploitation by malicious actors.

Exploitation Mechanism

Attackers can leverage the lack of input data validation to inject and execute arbitrary code on D-Link routers, compromising the device's security.

Mitigation and Prevention

Discover key steps to mitigate the risks associated with CVE-2021-34827 and secure vulnerable systems.

Immediate Steps to Take

Implement network segmentation, restrict access to vulnerable devices, and monitor for any suspicious activities to reduce the likelihood of exploitation.

Long-Term Security Practices

Enforce regular security audits, keep systems updated with the latest patches, and educate users on best security practices to enhance overall resilience.

Patching and Updates

Stay vigilant for security advisories from D-Link, apply security patches promptly, and keep abreast of any new developments to safeguard against potential attacks.