CVE-2021-28953 : Security Advisory and Response

This article provides detailed information about CVE-2021-28953, an unofficial C/C++ Advanced Lint extension vulnerability before version 1.9.0 for Visual Studio Code that allows attackers to execute arbitrary binaries when a crafted repository is opened.

Understanding CVE-2021-28953

This section delves into the nature of the vulnerability and its potential impact on affected systems.

What is CVE-2021-28953?

The unofficial C/C++ Advanced Lint extension before version 1.9.0 for Visual Studio Code is susceptible to a security flaw that permits malicious actors to run arbitrary binaries by exploiting a specially crafted repository.

The Impact of CVE-2021-28953

The vulnerability in CVE-2021-28953 poses a significant risk to users of the extension, allowing threat actors to execute unauthorized code on the affected system, potentially leading to data breaches or system compromise.

Technical Details of CVE-2021-28953

This section provides more insights into the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The flaw in the unofficial C/C++ Advanced Lint extension version prior to 1.9.0 for Visual Studio Code enables attackers to execute arbitrary binaries through a manipulated repository, leading to a severe security breach.

Affected Systems and Versions

All versions of the extension before 1.9.0 for Visual Studio Code are affected by this vulnerability, exposing users to potential exploitation by threat actors.

Exploitation Mechanism

By enticing a user to open a malicious repository, attackers can exploit the CVE-2021-28953 vulnerability to execute unauthorized binaries on the victim's system, compromising its integrity.

Mitigation and Prevention

This section outlines steps to mitigate the risk posed by CVE-2021-28953 and prevent possible exploitation by threat actors.

Immediate Steps to Take

Users of the unofficial C/C++ Advanced Lint extension should immediately update to version 1.9.0 or later to patch the vulnerability and avoid exposure to potential attacks.

Long-Term Security Practices

Implementing secure coding practices, regularly updating software, and exercising caution when interacting with untrusted repositories can help enhance overall cybersecurity posture.

Patching and Updates

Regularly check for updates and security patches for all software components, including extensions like the unofficial C/C++ Advanced Lint extension, to stay protected against known vulnerabilities.