CVE-2022-39245 : What You Need to Know

A detailed overview of the Mist vulnerability caused by user-provided Sudo binary for authentication checks.

Understanding CVE-2022-39245

This CVE affects Mist, the command-line interface for the makedeb Package Repository, allowing a local user to execute arbitrary commands with root permissions by providing a

sudo

binary.

What is CVE-2022-39245?

Prior to version 0.9.5, Mist is vulnerable to a security issue where a user-provided

sudo

binary in the PATH variable can lead to unauthorized command execution with elevated privileges.

The Impact of CVE-2022-39245

The vulnerability poses a high risk, with a CVSS base score of 8.4 (High severity). Attack complexity is low, but the availability, confidentiality, and integrity impacts are high. No user interaction or privileges are required for exploitation.

Technical Details of CVE-2022-39245

This section covers specifics of the vulnerability.

Vulnerability Description

Mist prior to version 0.9.5 allows local users to gain root access by manipulating the

sudo

binary in the system's

PATH

.

Affected Systems and Versions

Versions of Mist below 0.9.5 are impacted by this vulnerability, while version 0.9.5 and later contain a fix.

Exploitation Mechanism

By providing a malicious

sudo

binary via the

PATH

variable, a local user can achieve arbitrary command execution with elevated privileges.

Mitigation and Prevention

Tips to address and prevent the CVE-2022-39245 vulnerability.

Immediate Steps to Take

Upgrade Mist to version 0.9.5 or later to patch the vulnerability.
Avoid running Mist with elevated permissions unnecessarily.

Long-Term Security Practices

Regularly update Mist to the latest version to mitigate potential security risks.
Implement secure coding practices and conduct security audits.

Patching and Updates

Keep an eye on official releases and security advisories to apply patches promptly and ensure system security.