#VU40548 Permissions, Privileges, and Access Controls in Google Android - CVE-2015-6639

Vulnerability identifier: #VU40548

Vulnerability risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2015-6639

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The Widevine QSEE TrustZone application in Android 5.x before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application that leverages QSEECOM access, aka internal bug 24446875.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Android: 5.0 - 5.1.1, 6.0 - 6.0.1

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External links
https://source.android.com/security/bulletin/2016-01-01.html
https://www.securitytracker.com/id/1034592
https://www.exploit-db.com/exploits/39757/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.