CVE-2021-23399 : Exploit Details and Defense Strategies

A detailed article outlining the CVE-2021-23399 vulnerability in the wincred package, leading to arbitrary command injection.

Understanding CVE-2021-23399

This CVE affects all versions of the wincred package due to a vulnerability allowing attackers to execute arbitrary commands.

What is CVE-2021-23399?

CVE-2021-23399 refers to an arbitrary command injection vulnerability in the wincred package, granting attackers the ability to run malicious commands.

The Impact of CVE-2021-23399

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.3, making it critical for systems using the affected package.

Technical Details of CVE-2021-23399

This section covers specific technical details surrounding the CVE-2021-23399 vulnerability.

Vulnerability Description

The vulnerability arises when attacker-controlled user input is passed to the getCredential function, enabling the execution of arbitrary commands due to a lack of input sanitization.

Affected Systems and Versions

All versions of the wincred package are affected by this vulnerability, with no specified version limit.

Exploitation Mechanism

The exploitation is achieved through the use of the child_process exec function without proper input validation, allowing attackers to inject and execute commands.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-23399, immediate actions and long-term security measures are necessary.

Immediate Steps to Take

Immediately restrict user input and implement proper input sanitization to prevent command injection attacks.

Long-Term Security Practices

Adopt secure coding practices, conduct regular security audits, and stay updated on security patches and fixes to safeguard against similar vulnerabilities.

Patching and Updates

Regularly check for updates and security patches for the wincred package to address and eliminate the arbitrary command injection vulnerability.