CVE-2017-17145 in Honor V9
Summary
by MITRE
Huawei Honor V9 Play smart phones with the versions before Jimmy-AL00AC00B135 have an authentication bypass vulnerability due to the improper design of a component. An attacker who get a user's smart phone can execute specific operation, and delete the fingerprint of the phone without authentication.
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Analysis
by VulDB Data Team • 02/17/2023
The vulnerability identified as CVE-2017-17145 represents a critical authentication bypass flaw affecting Huawei Honor V9 Play smartphones running firmware versions prior to Jimmy-AL00AC00B135. This security weakness stems from improper design implementation within a core system component responsible for fingerprint authentication management. The vulnerability creates a significant risk by allowing unauthorized individuals to bypass the normal authentication mechanisms that protect device access and user data. The flaw specifically impacts the fingerprint management system, which should require proper authentication before allowing modifications to biometric data. Attackers exploiting this vulnerability can perform specific operations that enable them to delete existing fingerprints from the device without providing valid authentication credentials, effectively compromising the device's security posture.
The technical nature of this vulnerability aligns with CWE-287, which addresses improper authentication issues in software systems. This weakness allows an attacker to perform unauthorized actions that should require proper authentication, creating a direct pathway for privilege escalation and unauthorized access. The vulnerability exists at the system component level where fingerprint data management should enforce strict authentication requirements before allowing any modifications to the biometric database. The improper design likely involves insufficient validation of user credentials when attempting to delete or modify fingerprint data, creating a logic flaw that can be exploited by an attacker with physical access to the device. This authentication bypass represents a fundamental failure in the security architecture of the device's biometric authentication system, where the system does not properly verify user identity before permitting critical operations.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete compromise of the device's biometric security features. Once exploited, an attacker can remove all stored fingerprints from the device, effectively rendering the fingerprint authentication system useless for legitimate users while simultaneously creating a backdoor for unauthorized access. This vulnerability is particularly dangerous because it requires minimal technical expertise to exploit and can be executed by an attacker who has already gained physical possession of the device. The attack vector is straightforward - an attacker with physical access can simply perform specific operations on the device to delete fingerprints without authentication, potentially leading to complete device compromise. The vulnerability undermines the core security principle of authentication by allowing operations that should require verification to proceed without proper credential validation, creating a persistent security risk for users.
Mitigation strategies for this vulnerability should focus on immediate firmware updates to patch the authentication bypass flaw. Users should be advised to upgrade their device firmware to version Jimmy-AL00AC00B135 or later, which contains the necessary security fixes. Organizations managing Huawei Honor V9 Play devices should implement comprehensive device management policies that include mandatory firmware updates and regular security assessments. The vulnerability highlights the importance of proper authentication design principles and the need for comprehensive security testing of authentication components before deployment. Security teams should also consider implementing additional protective measures such as device encryption, remote wipe capabilities, and monitoring for unauthorized fingerprint modifications. This vulnerability serves as a reminder of the critical importance of proper authentication design and the potential consequences when authentication mechanisms fail to properly validate user credentials before permitting sensitive operations. The flaw demonstrates how insufficient validation of user identity can create persistent security risks that compromise the integrity of the entire authentication system, making it essential for manufacturers to implement robust security testing and validation processes for all authentication-related components.