CVE-2023-21631 Explained : Impact and Mitigation

This CVE record was published by Qualcomm on July 4, 2023, highlighting an issue with weak configuration due to improper input validation in the Modem while processing LTE security mode command messages received from the network.

Understanding CVE-2023-21631

This section delves into the details of CVE-2023-21631, shedding light on the vulnerability's nature and impact.

What is CVE-2023-21631?

CVE-2023-21631 involves weak configuration resulting from inadequate input validation in the Modem when handling LTE security mode command messages from the network. This vulnerability can have severe implications for affected systems.

The Impact of CVE-2023-21631

The vulnerability poses a high severity risk as it can compromise the integrity of the affected systems without requiring any special privileges. With a base score of 7.5 and a high severity rating, the threat of unauthorized access or data manipulation is significant.

Technical Details of CVE-2023-21631

This section provides a deeper dive into the technical aspects of CVE-2023-21631, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability stems from weak configuration in the Modem, where inadequate input validation allows for vulnerabilities to be exploited when processing LTE security mode command messages received from the network.

Affected Systems and Versions

Multiple versions of the Qualcomm Snapdragon platform are affected by this vulnerability, including but not limited to 315 5G IoT Modem, 9205 LTE Modem, APQ8017, APQ8037, and various other versions in the Snapdragon range.

Exploitation Mechanism

The vulnerability can be exploited over a network with a low level of complexity, making it a potential target for malicious actors seeking to compromise the integrity of the affected systems.

Mitigation and Prevention

In response to CVE-2023-21631, it is crucial to take immediate action to mitigate the risk and prevent potential exploitation of the vulnerability.

Immediate Steps to Take

Organizations using the affected Qualcomm Snapdragon platforms should apply any security patches or updates provided by Qualcomm promptly.
Implement network security measures to monitor and restrict unauthorized access that could potentially exploit the vulnerability.

Long-Term Security Practices

Regularly update and patch all software and firmware to ensure that known vulnerabilities are addressed promptly.
Conduct routine security audits and assessments to identify and remediate any potential security gaps within the system.

Patching and Updates

Qualcomm has released security advisories and updates to address CVE-2023-21631. It is essential for organizations to stay informed about security bulletins from Qualcomm and apply relevant patches to protect their systems from exploitation.