CVE-2023-48418 : Security Advisory and Response

A critical vulnerability has been identified in the Pixel Watch, a product of Google, which could allow an attacker to escalate privileges locally without the need for user interaction. This CVE, assigned by Google_Devices, has a CVSS base score of 10, categorizing it as critical.

Understanding CVE-2023-48418

This section will delve into the details of CVE-2023-48418, focusing on its impact, technical description, affected systems, exploitation mechanism, mitigation, and prevention.

What is CVE-2023-48418?

The vulnerability in checkDebuggingDisallowed of DeviceVersionFragment.java allows unauthorized access to adb before Setup Wizard (SUW) completion due to an insecure default value. This security flaw enables an attacker to escalate privileges locally without additional execution privileges, with no user interaction required.

The Impact of CVE-2023-48418

The impact of this vulnerability is categorized under CAPEC-233 - Privilege Escalation, posing a significant threat to the confidentiality, integrity, and availability of affected systems, specifically the Pixel Watch running Android version 11.

Technical Details of CVE-2023-48418

Let's dive into the technical aspects of CVE-2023-48418, exploring the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability originates from the checkDebuggingDisallowed function in DeviceVersionFragment.java, potentially leading to local privilege escalation. This occurs due to an insecure default value, allowing unauthorized access to adb before SUW completion.

Affected Systems and Versions

The Pixel Watch device by Google running Android version 11 is impacted by this vulnerability. Users of this specific device and software version are at risk of local privilege escalation attacks.

Exploitation Mechanism

Exploiting this vulnerability does not require any user interaction. Attackers can leverage the insecure default value in DeviceVersionFragment.java to gain unauthorized access to adb before SUW completion, facilitating local privilege escalation.

Mitigation and Prevention

In order to protect systems from the risks associated with CVE-2023-48418, it is crucial to implement immediate steps, adopt long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Users are advised to be cautious while interacting with the Pixel Watch device and refrain from installing software from untrusted sources. Additionally, monitoring adb access and suspicious activities is recommended.

Long-Term Security Practices

To enhance overall security posture, users should follow best practices such as keeping software up to date, conducting regular security audits, and educating users on safe computing habits.

Patching and Updates

Google is expected to release security patches addressing CVE-2023-48418. Users of the affected device and software version should promptly apply these updates to mitigate the risk of privilege escalation attacks.