Coolpad Defiant/ZTE ZMAX Pro/T-Mobile Revvl Plus Text Message input validation

Summaryinfo

A vulnerability was found in Coolpad Defiant, ZTE ZMAX Pro and T-Mobile Revvl Plus. It has been classified as critical. This issue affects some unknown processing of the component Text Message Handler. This manipulation causes input validation. This vulnerability appears as CVE-2018-14991. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Coolpad Defiant, ZTE ZMAX Pro and T-Mobile Revvl Plus (unknown version). Affected by this vulnerability is an unknown code block of the component Text Message Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 04/25/2019. This vulnerability is known as CVE-2018-14991 since 08/05/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-134082 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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• Coolpad Defiant
• T-Mobile Revvl Plus
• ZTE ZMAX Pro

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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