CVE-2022-25837 : Vulnerability Insights and Analysis

Bluetooth® Pairing in Bluetooth Core Specification v1.0B through v5.3 may permit an unauthenticated MITM to acquire credentials with two pairing devices via adjacent access when at least one device supports BR/EDR Secure Connections pairing and the other BR/EDR Legacy PIN code pairing if the MITM negotiates BR/EDR Secure Simple Pairing in Secure Connections mode using the Passkey association model with the pairing Initiator and BR/EDR Legacy PIN code pairing with the pairing Responder and brute forces the Passkey entered by the user into the Responder as a 6-digit PIN code. The MITM attacker can use the identified PIN code value as the Passkey value to complete authentication with the Initiator via Bluetooth pairing method confusion.

Understanding CVE-2022-25837

Bluetooth® pairing vulnerability may lead to the unauthorized acquisition of credentials between two devices through adjacent access.

What is CVE-2022-25837?

CVE-2022-25837 highlights a security flaw in Bluetooth Pairing processes, potentially exploited by a Man-in-the-Middle attacker to intercept credentials during the pairing of Bluetooth devices.

The Impact of CVE-2022-25837

This vulnerability could result in unauthorized disclosure of sensitive information and compromise the confidentiality of Bluetooth communications, allowing malicious actors to exploit paired device connections.

Technical Details of CVE-2022-25837

The following details shed light on the vulnerability:

Vulnerability Description

The vulnerability arises due to an unauthenticated Man-in-the-Middle attack during Bluetooth pairing, specifically impacting devices using BR/EDR Secure Connections and Legacy PIN code pairing.

Affected Systems and Versions

All Bluetooth Core Specification versions ranging from v1.0B to v5.3 may be affected by this security issue.

Exploitation Mechanism

An attacker can exploit the vulnerability by manipulating the authentication process between Bluetooth devices, ultimately gaining unauthorized access to device credentials.

Mitigation and Prevention

To address CVE-2022-25837 and enhance Bluetooth security measures, consider the following steps:

Immediate Steps to Take

Disable Bluetooth functionality when not in use to reduce exposure to potential attacks.
Ensure devices are updated with the latest firmware or security patches to mitigate known vulnerabilities.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Bluetooth technology providers.
Implement strong encryption and authentication protocols to enhance the security of Bluetooth connections.

Patching and Updates

Organizations are advised to apply patches released by manufacturers promptly to address the vulnerability and protect devices from potential exploitation.