CVE-2021-22384 in Huawei
Summary
by MITRE • 08/02/2021
There is an Information Disclosure Vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may lead to authentication bypass.
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Analysis
by VulDB Data Team • 08/06/2021
The vulnerability identified as CVE-2021-22384 represents a critical information disclosure flaw within Huawei smartphone devices that carries significant security implications. This vulnerability resides in the smartphone's operating system or firmware components, specifically affecting the authentication mechanisms that protect user data and device access. The flaw allows attackers to extract sensitive information that could potentially compromise the security posture of affected devices.
This information disclosure vulnerability operates through a specific technical mechanism that enables unauthorized access to authentication-related data or system parameters. The flaw likely exists within the smartphone's security framework where sensitive authentication tokens, cryptographic keys, or session information are improperly handled or exposed to unauthorized parties. The vulnerability's classification as an information disclosure issue indicates that it allows adversaries to gain access to data that should remain protected, potentially leading to more severe security consequences.
The operational impact of CVE-2021-22384 extends beyond simple data exposure, as successful exploitation can result in authentication bypass capabilities that fundamentally compromise device security. When attackers can leverage this vulnerability to bypass authentication mechanisms, they gain unauthorized access to user accounts, applications, and sensitive device functions. This creates a pathway for further exploitation including data theft, device takeover, and potential lateral movement within network environments where the compromised device may be connected. The vulnerability affects Huawei smartphone users globally, potentially exposing millions of devices to unauthorized access.
The technical exploitation of this vulnerability aligns with common attack patterns documented in the attack framework, where information disclosure serves as a precursor to privilege escalation and access control bypass. From a cybersecurity perspective, this vulnerability demonstrates the critical importance of proper information handling within mobile operating systems and firmware components. The flaw may be categorized under CWE-200 (Information Exposure) and potentially CWE-284 (Improper Access Control) depending on the specific implementation details. Security researchers have identified this vulnerability as particularly concerning due to its potential for authentication bypass, which represents a fundamental weakening of mobile device security architecture.
Organizations and users should immediately implement mitigations including applying official firmware updates from Huawei, enabling additional security controls, and monitoring for suspicious activities on affected devices. Network administrators should consider implementing additional access controls and monitoring for unauthorized device access attempts. The vulnerability highlights the need for robust security testing of mobile operating systems and firmware components, particularly focusing on authentication and access control mechanisms. Regular security assessments and vulnerability management processes should be enhanced to identify similar information disclosure vulnerabilities that could enable authentication bypass scenarios.