CVE-2021-43463 : Security Advisory and Response

An Unquoted Service Path vulnerability exists in Ext2Fsd v0.68 via a specially crafted file in the Ext2Srv Service executable service path.

Understanding CVE-2021-43463

An Unquoted Service Path vulnerability in Ext2Fsd v0.68 allows attacks via a crafted file in the service executable path.

What is CVE-2021-43463?

An Unquoted Service Path vulnerability in Ext2Fsd v0.68 enables malicious actors to exploit a specially crafted file in the Service executable path.

The Impact of CVE-2021-43463

The vulnerability may result in unauthorized privilege escalation on affected systems.
Attackers could execute arbitrary code within the context of the system.

Technical Details of CVE-2021-43463

This section provides insights into the technical aspects of the CVE.

Vulnerability Description

The vulnerability stems from an unquoted service path issue in Ext2Fsd v0.68, triggered by a maliciously crafted file in the Ext2Srv Service executable path.

Affected Systems and Versions

Affected Versions: Ext2Fsd v0.68
Systems: Any system running Ext2Fsd v0.68

Exploitation Mechanism

The vulnerability can be exploited by placing a specially crafted file in the service executable path, leading to unauthorized access and potential code execution.

Mitigation and Prevention

Protect your systems with the following mitigation strategies.

Immediate Steps to Take

Implement the principle of least privilege for system services.
Regularly monitor and review service configurations for vulnerabilities.
Conduct security assessments to identify unquoted service path issues.

Long-Term Security Practices

Enforce proper quoting of file paths to prevent similar vulnerabilities.
Apply the latest security patches and updates to prevent exploitation.

Patching and Updates

Update to a patched version of Ext2Fsd.
Stay informed about security best practices and apply relevant updates promptly.