#VU40348 Permissions, Privileges, and Access Controls in Google Android - CVE-2016-2423

Vulnerability identifier: #VU40348

Vulnerability risk: Medium

CVSSv4.0: 1.8 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-2423

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

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

Vendor: Google

Description

The vulnerability allows a local non-authenticated attacker to #BASIC_IMPACT#.

server/telecom/CallsManager.java in Telephony in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 does not properly consider whether a device is provisioned, which allows physically proximate attackers to bypass the Factory Reset Protection protection mechanism and delete data via unspecified vectors, aka internal bug 26303187.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Android: 4.0 - 4.4.3, 5.0 - 5.1.0, 6.0 - 6.0.1

---

External links
https://source.android.com/security/bulletin/2016-04-02.html
https://android.googlesource.com/platform/packages/services/Telecomm/+/a06c9a4aef69ae27b951523cf72bf72412bf48fa

---

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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