T-Mobile Revvl Plus Firmware

The Coolpad Defiant (Coolpad/cp3632a/cp3632a:7.1.1/NMF26F/099480857:user/release-keys) and the T-Mobile Revvl Plus (Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys) Android devices contain a pre-installed platform app with a package name of com.qualcomm.qti.telephony.extcarrierpack (versionCode=25, versionName=7.1.1) containing an exported broadcast receiver app component named com.qualcomm.qti.telephony.extcarrierpack.UiccReceiver that allows any app co-located on the device to programmatically perform a factory reset. In addition, the app initiating the factory reset does not require any permissions. A factory reset will remove all user data and apps from the device. This will result in the loss of any data that have not been backed up or synced externally. The capability to perform a factory reset is not directly available to third-party apps (those that the user installs themselves with the exception of enabled Mobile Device Management (MDM) apps), although this capability can be obtained by leveraging an unprotected app component of a pre-installed platform app.

Published: 2019-04-25T19:36:44.000Z
Updated: 2024-08-05T09:46:25.334Z

The Coolpad Defiant device with a build fingerprint of Coolpad/cp3632a/cp3632a:7.1.1/NMF26F/099480857:user/release-keys, the ZTE ZMAX Pro with a build fingerprint of ZTE/P895T20/urd:6.0.1/MMB29M/20170418.114928:user/release-keys, and the T-Mobile Revvl Plus with a build fingerprint of Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys all contain a vulnerable, pre-installed Rich Communication Services (RCS) app. These devices contain an that app has a package name of com.suntek.mway.rcs.app.service (versionCode=1, versionName=RCS_sdk_M_native_20161008_01; versionCode=1, versionName=RCS_sdk_M_native_20170406_01) with an exported content provider named com.suntek.mway.rcs.app.service.provider.message.MessageProvider and a refactored version of the app with a package name of com.rcs.gsma.na.sdk (versionCode=1, versionName=RCS_SDK_20170804_01) with a content provider named com.rcs.gsma.na.provider.message.MessageProvider allow any app co-located on the device to read, write, insert, and modify the user's text messages. This is enabled by an exported content provider app component that serves as a wrapper to the official content provider that contains the user's text messages. This app cannot be disabled by the user and the attack can be performed by a zero-permission app.

Published: 2019-04-25T19:33:52.000Z
Updated: 2024-08-05T09:46:25.298Z

The Coolpad Defiant device with a build fingerprint of Coolpad/cp3632a/cp3632a:7.1.1/NMF26F/099480857:user/release-keys, the ZTE ZMAX Pro with a build fingerprint of ZTE/P895T20/urd:6.0.1/MMB29M/20170418.114928:user/release-keys, and the T-Mobile Revvl Plus with a build fingerprint of Coolpad/alchemy/alchemy:7.1.1/143.14.171129.3701A-TMO/buildf_nj_02-206:user/release-keys all contain a vulnerable, pre-installed Rich Communication Services (RCS) app. These devices contain an that app has a package name of com.suntek.mway.rcs.app.service (versionCode=1, versionName=RCS_sdk_M_native_20161008_01; versionCode=1, versionName=RCS_sdk_M_native_20170406_01) with a broadcast receiver app component named com.suntek.mway.rcs.app.test.TestReceiver and a refactored version of the app with a package name of com.rcs.gsma.na.sdk (versionCode=1, versionName=RCS_SDK_20170804_01) with a broadcast receiver app component named com.rcs.gsma.na.test.TestReceiver allow any app co-located on the device to programmatically send text messages where the number and body of the text message is controlled by the attacker due to an exported broadcast receiver app component. This app cannot be disabled by the user and the attack can be performed by a zero-permission app. A separate vulnerability in the app allows a zero-permission app to programmatically delete text messages, so the sent text messages can be removed to not alert the user.

Published: 2019-04-25T19:33:20.000Z
Updated: 2024-08-05T09:46:25.369Z