CVE-2021-28927 : Vulnerability Insights and Analysis

The CVE-2021-28927 involves a vulnerability in the text-to-speech engine of libretro RetroArch for Windows 1.9.0. This vulnerability allows attackers with write access on the filesystems used by RetroArch to execute arbitrary code through command injection.

Understanding CVE-2021-28927

This section dives deeper into the nature of the vulnerability and its impact.

What is CVE-2021-28927?

The text-to-speech engine in libretro RetroArch for Windows 1.9.0 processes unsanitized input to PowerShell, leading to command injection via specially crafted file and directory names. Attackers leveraging this flaw can execute malicious code.

The Impact of CVE-2021-28927

The vulnerability allows threat actors to execute arbitrary commands on systems where RetroArch is installed, potentially leading to unauthorized access, data theft, and system compromise.

Technical Details of CVE-2021-28927

Explore the technical aspects of the vulnerability and its exploitation.

Vulnerability Description

The flaw arises from unsanitized input passed to PowerShell through platform_win32.c by the accessibility_speak_windows function in libretro RetroArch for Windows 1.9.0.

Affected Systems and Versions

All Windows systems running libretro RetroArch 1.9.0 are impacted by this vulnerability.

Exploitation Mechanism

Attackers with write access on RetroArch filesystems can inject malicious commands using specially crafted file and directory names to trigger arbitrary code execution.

Mitigation and Prevention

Learn about the steps to mitigate the risk and prevent exploitation of CVE-2021-28927.

Immediate Steps to Take

Users should refrain from interacting with untrusted files or directories within RetroArch and apply security updates promptly.

Long-Term Security Practices

Maintain a robust security posture by following best practices, such as restricting write access to critical directories and regularly updating software.

Patching and Updates

Ensure that RetroArch is updated to a secure version that addresses the command injection vulnerability to safeguard your systems.