#VU755 Privilege Escalation in Google Android - CVE-2016-3923

Vulnerability identifier: #VU755

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-3923

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

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

Vendor: Google

Description

The vulnerability allows a local application to obtain elevated privileges on the target system

The vulnerability exists due to improper validation of user-supplied input by the Accessibility services of the affected software. By tricking the victim to follow a malicious link or open a malicious file attackers can bypass user's security limitations and cause the application to open dialog boxes without user's permission.

Successful exploitation of this vulnerability will result in privilege escalation on the vulnerable system.

Mitigation
Update to version 7.1.

Vulnerable software versions

Google Android: 7.0

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External links
https://source.android.com/security/bulletin/2016-10-01.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.