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ID

VAR-201904-0568


CVE

CVE-2018-14996


TITLE

Oppo F5 Android Command injection vulnerability in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-015351

DESCRIPTION

The Oppo F5 Android device with a build fingerprint of OPPO/CPH1723/CPH1723:7.1.1/N6F26Q/1513597833:user/release-keys contains a pre-installed platform app with a package name of com.dropboxchmod (versionCode=1, versionName=1.0) that contains an exported service named com.dropboxchmod.DropboxChmodService that allows any app co-located on the device to supply arbitrary commands to be executed as the system user. This app cannot be disabled by the user and the attack can be performed by a zero-permission app. Executing commands as system user can allow a third-party app to video record the user's screen, factory reset the device, obtain the user's notifications, read the logcat logs, inject events in the Graphical User Interface (GUI), and obtains the user's text messages, and more. This vulnerability can also be used to secretly record audio of the user without their awareness on the Oppo F5 device. The pre-installed com.oppo.engineermode app (versionCode=25, versionName=V1.01) has an exported activity that can be started to initiate a recording and quickly dismissed. The activity can be started in a way that the user will not be able to see the app in the recent apps list. The resulting audio amr file can be copied from a location on internal storage using the arbitrary command execution as system user vulnerability. Executing commands as system user can allow a third-party app to factory reset the device, obtain the user's notifications, read the logcat logs, inject events in the Graphical User Interface (GUI), change the default Input Method Editor (IME) (e.g., keyboard) with one contained within the attacking app that contains keylogging functionality, obtain the user's text messages, and more. The OPPO F5 is a smartphone based on the Android platform from the Chinese OPPO Guangdong Mobile Communications (OPPO) company

Trust: 1.71

sources: NVD: CVE-2018-14996 // JVNDB: JVNDB-2018-015351 // VULHUB: VHN-125211

AFFECTED PRODUCTS

vendor:oppomodel:f5scope:eqversion: -

Trust: 1.0

vendor:oppomodel:f5scope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2018-015351 // NVD: CVE-2018-14996

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2018-14996
value: HIGH

Trust: 1.0

NVD: CVE-2018-14996
value: HIGH

Trust: 0.8

CNNVD: CNNVD-201904-1181
value: HIGH

Trust: 0.6

VULHUB: VHN-125211
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2018-14996
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

VULHUB: VHN-125211
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2018-14996
baseSeverity: HIGH
baseScore: 7.8
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.0

Trust: 1.8

sources: VULHUB: VHN-125211 // JVNDB: JVNDB-2018-015351 // CNNVD: CNNVD-201904-1181 // NVD: CVE-2018-14996

PROBLEMTYPE DATA

problemtype:NVD-CWE-noinfo

Trust: 1.0

problemtype:CWE-77

Trust: 0.9

sources: VULHUB: VHN-125211 // JVNDB: JVNDB-2018-015351 // NVD: CVE-2018-14996

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-201904-1181

TYPE

command injection

Trust: 0.6

sources: CNNVD: CNNVD-201904-1181

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2018-015351

PATCH
title:Top Pageurl:https://www.oppo.com/en/
Trust: 0.8
sources:
            
            
            JVNDB: JVNDB-2018-015351

EXTERNAL IDS
db:NVDid:CVE-2018-14996
Trust: 2.5
db:JVNDBid:JVNDB-2018-015351
Trust: 0.8
db:CNNVDid:CNNVD-201904-1181
Trust: 0.7
db:VULHUBid:VHN-125211
Trust: 0.1
sources:
            
            
            VULHUB: VHN-125211 // 
            
            
            
            JVNDB: JVNDB-2018-015351 // 
            
            
            
            CNNVD: CNNVD-201904-1181 // 
            
            
            
            NVD: CVE-2018-14996

REFERENCES
url:https://www.kryptowire.com/portal/android-firmware-defcon-2018/
Trust: 1.7
url:https://www.kryptowire.com/portal/wp-content/uploads/2018/12/defcon-26-johnson-and-stavrou-vulnerable-out-of-the-box-an-eval-of-android-carrier-devices-wp-updated.pdf
Trust: 1.7
url:https://nvd.nist.gov/vuln/detail/cve-2018-14996
Trust: 1.4
url:https://www.kryptowire.com
Trust: 1.1
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-14996
Trust: 0.8
url:https://www.kryptowire.com/android-firmware-defcon-2018/
Trust: 0.8
sources:
            
            
            VULHUB: VHN-125211 // 
            
            
            
            JVNDB: JVNDB-2018-015351 // 
            
            
            
            CNNVD: CNNVD-201904-1181 // 
            
            
            
            NVD: CVE-2018-14996

SOURCES
db:VULHUBid:VHN-125211
db:JVNDBid:JVNDB-2018-015351
db:CNNVDid:CNNVD-201904-1181
db:NVDid:CVE-2018-14996

LAST UPDATE DATE
2024-11-23T22:06:17.191000+00:00

SOURCES UPDATE DATE
db:VULHUBid:VHN-125211date:2019-10-03T00:00:00
db:JVNDBid:JVNDB-2018-015351date:2019-05-29T00:00:00
db:CNNVDid:CNNVD-201904-1181date:2019-10-23T00:00:00
db:NVDid:CVE-2018-14996date:2024-11-21T03:50:17.897

SOURCES RELEASE DATE
db:VULHUBid:VHN-125211date:2019-04-25T00:00:00
db:JVNDBid:JVNDB-2018-015351date:2019-05-29T00:00:00
db:CNNVDid:CNNVD-201904-1181date:2019-04-25T00:00:00
db:NVDid:CVE-2018-14996date:2019-04-25T20:29:01.163