CVE-2023-21441 Explained : Impact and Mitigation

This CVE, assigned by Samsung Mobile, highlights an Insufficient Verification of Data Authenticity vulnerability in Routine prior to certain versions in Android Q(10), Android R(11), and Android S(12). This vulnerability allows a local attacker to access protected files through unused code.

Understanding CVE-2023-21441

This section covers the essential information regarding CVE-2023-21441.

What is CVE-2023-21441?

CVE-2023-21441 is an Insufficient Verification of Data Authenticity vulnerability that exists in Routine versions prior to specific versions in Android Q, Android R, and Android S. This flaw permits a local attacker to gain access to protected files by leveraging unused code within the affected systems.

The Impact of CVE-2023-21441

The impact of CVE-2023-21441 is rated as HIGH. It has the potential to compromise the confidentiality and integrity of the affected systems. With a CVSS base score of 7.4, this vulnerability poses a significant risk to the security of the devices running the vulnerable versions of Routine.

Technical Details of CVE-2023-21441

Delve deeper into the technical aspects of CVE-2023-21441 to understand the nature of the vulnerability.

Vulnerability Description

The vulnerability stems from Insufficient Verification of Data Authenticity in Routine versions prior to 2.6.30.6 in Android Q, 3.1.21.10 in Android R, and 3.5.2.23 in Android S. This flaw allows a local attacker to bypass security measures and access protected files using unused code.

Affected Systems and Versions

The affected systems include Android Q(10), Android R(11), and Android S(12) running Routine versions prior to 2.6.30.6, 3.1.21.10, and 3.5.2.23 respectively. Devices using these versions are vulnerable to exploitation.

Exploitation Mechanism

The vulnerability can be exploited by a local attacker who has access to the targeted system. By exploiting the Insufficient Verification of Data Authenticity flaw through unused code, the attacker can circumvent protections and gain unauthorized access to sensitive files.

Mitigation and Prevention

Explore the steps that can be taken to mitigate the risks associated with CVE-2023-21441 and prevent potential exploitation.

Immediate Steps to Take

Samsung Mobile advises users to update Routine to the latest version that addresses the Insufficient Verification of Data Authenticity vulnerability.
Users should exercise caution while accessing files and directories, especially those containing sensitive information, to prevent unauthorized access.
Implementing robust access controls and monitoring mechanisms can help detect and prevent unauthorized access attempts.

Long-Term Security Practices

Regularly update software and firmware to ensure that known vulnerabilities are addressed promptly.
Conduct security assessments and audits to identify and remediate potential security weaknesses within the system.
Educate users about best practices for data security and the risks associated with unauthorized access to protected files.

Patching and Updates

Samsung Mobile has released patches for Routine to fix the Insufficient Verification of Data Authenticity vulnerability. Users should apply these patches as soon as possible to secure their devices against potential exploits.