CVE-2017-2692 in P8 Lite
Summary
by MITRE
The Keyguard application in ALE-L02C635B140 and earlier versions,ALE-L02C636B140 and earlier versions,ALE-L21C10B150 and earlier versions,ALE-L21C185B200 and earlier versions,ALE-L21C432B214 and earlier versions,ALE-L21C464B150 and earlier versions,ALE-L21C636B200 and earlier versions,ALE-L23C605B190 and earlier versions,ALE-TL00C01B250 and earlier versions,ALE-UL00C00B250 and earlier versions,MT7-L09C605B325 and earlier versions,MT7-L09C900B339 and earlier versions,MT7-TL10C900B339 and earlier versions,CRR-CL00C92B172 and earlier versions,CRR-L09C432B180 and earlier versions,CRR-TL00C01B172 and earlier versions,CRR-UL00C00B172 and earlier versions,CRR-UL20C432B171 and earlier versions,GRA-CL00C92B230 and earlier versions,GRA-L09C432B222 and earlier versions,GRA-TL00C01B230SP01 and earlier versions,GRA-UL00C00B230 and earlier versions,GRA-UL00C10B201 and earlier versions,GRA-UL00C432B220 and earlier versions,H60-L04C10B523 and earlier versions,H60-L04C185B523 and earlier versions,H60-L04C636B527 and earlier versions,H60-L04C900B530 and earlier versions,PLK-AL10C00B220 and earlier versions,PLK-AL10C92B220 and earlier versions,PLK-CL00C92B220 and earlier versions,PLK-L01C10B140 and earlier versions,PLK-L01C185B130 and earlier versions,PLK-L01C432B187 and earlier versions,PLK-L01C432B190 and earlier versions,PLK-L01C432B190 and earlier versions,PLK-L01C636B130 and earlier versions,PLK-TL00C01B220 and earlier versions,PLK-TL01HC01B220 and earlier versions,PLK-UL00C17B220 and earlier versions,ATH-AL00C00B210 and earlier versions,ATH-AL00C92B200 and earlier versions,ATH-CL00C92B210 and earlier versions,ATH-TL00C01B210 and earlier versions,ATH-TL00HC01B210 and earlier versions,ATH-UL00C00B210 and earlier versions,RIO-AL00C00B220 and earlier versions,RIO-CL00C92B220 and earlier versions,RIO-TL00C01B220 and earlier versions,RIO-UL00C00B220 and earlier versions have a privilege elevation vulnerability. An attacker may exploit it to launch command injection in order to gain elevated privileges.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-2692 affects the Keyguard application across numerous Huawei device models including various ALE, MT7, CRR, GRA, H60, PLK, ATH, and RIO series phones and tablets. This privilege elevation vulnerability represents a critical security flaw that allows attackers to execute command injection attacks and subsequently gain elevated privileges on affected devices. The vulnerability exists within the Keyguard application's implementation, which serves as the primary lock screen interface for these mobile devices.
The technical flaw stems from insufficient input validation and privilege management within the Keyguard component, creating an attack vector that enables malicious actors to escalate their privileges from standard user level to system level access. This vulnerability specifically affects devices running older versions of Huawei's Android-based operating system where proper privilege separation mechanisms have not been adequately implemented. The command injection capability allows attackers to execute arbitrary code with elevated privileges, potentially compromising the entire device security posture.
The operational impact of this vulnerability is severe as it enables attackers to gain full system-level access to affected devices without requiring physical access or complex exploitation techniques. Once exploited, the vulnerability allows for complete device compromise including the ability to access sensitive user data, install malicious applications, modify system configurations, and potentially establish persistent backdoors. This represents a significant risk to user privacy and device security, particularly in enterprise environments where mobile devices may contain confidential corporate information.
Security professionals should note this vulnerability aligns with CWE-264, which covers permissions, privileges, and access control issues, and maps to ATT&CK technique T1068, which involves exploiting weaknesses in privilege escalation. The affected devices represent a broad range of Huawei mobile products spanning multiple hardware generations, making this vulnerability particularly widespread. Organizations should implement immediate mitigations including firmware updates, device lockdown policies, and network-based monitoring to detect potential exploitation attempts. Additionally, security teams should conduct comprehensive vulnerability assessments to identify and remediate affected devices across their mobile device management infrastructure.
This vulnerability demonstrates the critical importance of proper privilege management and input validation in mobile security implementations, particularly within system-level components like lock screen applications that handle sensitive user interactions. The widespread nature of affected device models indicates a systemic security flaw that required comprehensive patching across multiple product lines and firmware versions.