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CVE-2018-9489

Status Candidate

Overview

When wifi is switched, function sendNetworkStateChangeBroadcast of WifiStateMachine.java broadcasts an intent including detailed wifi network information. This could lead to information disclosure with no execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9.0 Android ID: A-77286245.

Related Files

Android OS WiFi Broadcast Sensitive Data Exposure
Posted Aug 30, 2018
Authored by Yakov Shafranovich, Vilius Kraujutis | Site wwws.nightwatchcybersecurity.com

System broadcasts by Android OS expose information about the user's device to all applications running on the device. This includes the WiFi network name, BSSID, local IP addresses, DNS server information and the MAC address. Some of this information (MAC address) is no longer available via APIs on Android 6 and higher, and extra permissions are normally required to access the rest of this information. However, by listening to these broadcasts, any application on the device can capture this information thus bypassing any permission checks and existing mitigations.

tags | exploit, local, info disclosure
advisories | CVE-2018-9489
SHA-256 | 523ebc0e6847c2ff3858fa671185f0aded4e77fd712ecd694c1d059ae8df9760
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