CVE-2023-30721 Explained : Impact and Mitigation

A detailed overview of CVE-2023-30721 highlighting the vulnerability, impact, technical details, and mitigation steps.

Understanding CVE-2023-30721

This section covers the essential aspects of the CVE-2023-30721 vulnerability.

What is CVE-2023-30721?

The CVE-2023-30721 vulnerability involves the insertion of sensitive information into the log in Locksettings before the SMR Sep-2023 Release 1. This allows a privileged local attacker to extract lock screen match information from the log.

The Impact of CVE-2023-30721

The vulnerability poses a moderate risk with a base severity of MEDIUM. It has a CVSS base score of 4.4. The confidentiality of the affected system is compromised, while integrity and availability remain unaffected.

Technical Details of CVE-2023-30721

Delve into the technical specifics of CVE-2023-30721 below.

Vulnerability Description

The vulnerability enables a privileged local attacker to retrieve lock screen match details from the log, potentially leading to unauthorized access.

Affected Systems and Versions

Samsung Mobile Devices are affected by this vulnerability, specifically before the SMR Sep-2023 Release 1 in Android 11, 12, and 13.

Exploitation Mechanism

The vulnerability enables a local attacker to exploit the log files in Locksettings to extract sensitive information, leveraging high privileges without requiring user interaction.

Mitigation and Prevention

Discover the necessary steps to mitigate and prevent CVE-2023-30721 below.

Immediate Steps to Take

Users and administrators should apply the SMR Sep-2023 Release to patch the vulnerability. Restricting access to log files can also enhance security.

Long-Term Security Practices

Regularly updating systems and maintaining strict access controls can prevent similar vulnerabilities in the future.

Patching and Updates

Ensure all Samsung Mobile Devices are updated to the latest SMR Sep-2023 Release to address the CVE-2023-30721 vulnerability.