Description

An issue was discovered on BLU Advance 5.0 and BLU R1 HD devices with Shanghai Adups software. The com.adups.fota.sysoper app is installed as a system app and cannot be disabled by the user. In the com.adups.fota.sysoper app's AndroidManifest.xml file, it sets the android:sharedUserId attribute to a value of android.uid.system which makes it execute as the system user, which is a very privileged user on the device. The app has an exported broadcast receiver named com.adups.fota.sysoper.WriteCommandReceiver which any app on the device can interact with. Therefore, any app can send a command embedded in an intent which will be executed by the WriteCommandReceiver component which is executing as the system user. The third-party app, utilizing the WriteCommandReceiver, can perform the following actions: call a phone number, factory reset the device, take pictures of the screen, record the screen in a video, install applications, inject events, obtain the Android log, and others. In addition, the com.adups.fota.sysoper.TaskService component will make a request to a URL of http://rebootv5.adsunflower.com/ps/fetch.do where the commands in the String array with a key of sf in the JSON Object sent back by the server will be executed as the system user. Since the connection is made via HTTP, it is vulnerable to a MITM attack.

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  7.8 HIGH

Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score:  7.2 HIGH

Vector:  (AV:L/AC:L/Au:N/C:C/I:C/A:C)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/96853
https://www.kryptowire.com/adups_security_analysis.html	Technical Description  Third Party Advisory
https://www.nytimes.com/2016/11/16/us/politics/china-phones-software-security.html	Press/Media Coverage

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-310	Cryptographic Issues	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

CVE Modified by MITRE 5/13/2024 11:49:23 PM

Action	Type	Old Value	New Value

CVE Modified by MITRE 3/15/2017 9:59:00 PM

Action	Type	Old Value	New Value
Added	Reference		http://www.securityfocus.com/bid/96853 [No Types Assigned]

Initial Analysis by NIST 1/23/2017 2:15:19 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR *cpe:2.3:a:adups:adups_fota:-:*:*:*:*:*:*:*
Added	CVSS V2		(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Added	CVSS V3		AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-310
Changed	Reference Type	https://www.kryptowire.com/adups_security_analysis.html No Types Assigned	https://www.kryptowire.com/adups_security_analysis.html Third Party Advisory, Technical Description
Changed	Reference Type	https://www.nytimes.com/2016/11/16/us/politics/china-phones-software-security.html No Types Assigned	https://www.nytimes.com/2016/11/16/us/politics/china-phones-software-security.html Press/Media Coverage