CVE-2017-0701 in Android
Summary
by MITRE
A remote code execution vulnerability in the Android system ui. Product: Android. Versions: 7.1.1, 7.1.2. Android ID: A-36385715.
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Analysis
by VulDB Data Team • 12/31/2020
The vulnerability identified as CVE-2017-0701 represents a critical remote code execution flaw within the Android system ui component affecting versions 7.1.1 and 7.1.2. This vulnerability resides in the system user interface framework that handles various system-level operations and interactions. The flaw manifests in how the system ui processes certain input parameters, creating an avenue for malicious actors to execute arbitrary code on affected devices. The vulnerability is particularly concerning as it operates at the system level, potentially allowing attackers to gain elevated privileges and full control over the affected Android devices.
This vulnerability stems from improper input validation within the system ui framework, specifically in the handling of user-provided data through the notification system and system dialogs. The flaw allows attackers to craft malicious payloads that, when processed by the system ui, trigger unintended code execution. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, where insufficient bounds checking enables attackers to overwrite critical memory locations. The attack vector requires minimal user interaction, often involving the simple act of viewing a specially crafted notification or dialog that triggers the vulnerable code path within the system ui component.
The operational impact of CVE-2017-0701 extends beyond simple remote code execution, as it can be leveraged to establish persistent backdoors, exfiltrate sensitive data, or manipulate device functionality. Attackers can exploit this vulnerability to gain root-level access to devices, enabling them to install malicious applications, modify system files, or intercept communications. The vulnerability's exploitation can occur without requiring user interaction beyond viewing a malicious notification, making it particularly dangerous in environments where users may encounter untrusted content. This flaw directly impacts the Android security model by undermining the isolation between user applications and system services, creating a pathway for privilege escalation attacks that align with techniques described in the ATT&CK framework under privilege escalation tactics.
Mitigation strategies for CVE-2017-0701 primarily involve applying the security patches released by Google as part of their regular security updates. Organizations should prioritize immediate deployment of Android security patches that address this vulnerability, as the flaw remains exploitable in unpatched systems. System administrators should implement network monitoring to detect potential exploitation attempts and establish robust patch management processes to ensure timely deployment of security updates. Additional protective measures include implementing application whitelisting policies, restricting notification permissions for untrusted applications, and conducting regular security assessments to identify potential exploitation vectors. The vulnerability underscores the importance of maintaining up-to-date security patches and highlights the critical nature of system ui components in Android security architecture. Organizations should also consider implementing mobile device management solutions that can enforce security policies and automatically deploy patches to affected devices. The remediation process must account for the vulnerability's potential to be exploited in the wild, making prompt action essential to prevent widespread compromise of affected Android devices.