CVE-2022-25328 : Security Advisory and Response
Learn about CVE-2022-25328, a vulnerability in fscrypt allowing privilege escalation through command injection. Understand the impact, technical details, and mitigation steps.
This article provides detailed information about CVE-2022-25328, a vulnerability in fscrypt that allows privilege escalation through command injection. Learn about the impact, technical details, and mitigation steps.
Understanding CVE-2022-25328
CVE-2022-25328 is a vulnerability in fscrypt that enables privilege escalation through command injection in a specific scenario.
What is CVE-2022-25328?
The bash_completion script for fscrypt allows an attacker to inject commands via crafted mountpoint paths, leading to privilege escalation. A local user can exploit this vulnerability by creating a malicious mountpoint path when the system administrator uses the fscrypt bash completion script.
The Impact of CVE-2022-25328
The impact of CVE-2022-25328 is rated as MEDIUM with a base score of 5.0. It has a LOW attack complexity and requires LOCAL attack vector. The vulnerability could result in HIGH availability impact.
Technical Details of CVE-2022-25328
CVE-2022-25328 is classified under CWE-78 OS Command Injection.
Vulnerability Description
The vulnerability in the fscrypt bash_completion script allows for command injection via specially crafted mountpoint paths, potentially leading to privilege escalation.
Affected Systems and Versions
The affected product is fscrypt by Google LLC, with versions less than or equal to 0.3.2 being impacted.
Exploitation Mechanism
An attacker with control over mountpoint paths can exploit this vulnerability to escalate their privileges by injecting malicious commands.
Mitigation and Prevention
It is crucial to take immediate steps to address CVE-2022-25328 and implement long-term security practices.
Immediate Steps to Take
Upgrade to fscrypt version 0.3.3 or above to mitigate the vulnerability. Avoid using the bash_completion script until the patch is applied.
Long-Term Security Practices
Regularly update software and follow best practices for secure system configuration. Monitor for any suspicious activities related to mountpoint paths.
Patching and Updates
Stay informed about security patches and updates for fscrypt to ensure protection against known vulnerabilities.