Permissions, Privileges, and Access Controls in Google, Google Android

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU42228

Risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2013-6271

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Android 4.0 through 4.3 allows attackers to bypass intended access restrictions and remove device locks via a crafted application that invokes the updateUnlockMethodAndFinish method in the com.android.settings.ChooseLockGeneric class with the PASSWORD_QUALITY_UNSPECIFIED option.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Google Android: 4.0 - 4.3

CPE2.3

• cpe:2.3:o:google:android:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:google:android:*:*:*:*:*:*:*:*

External links

https://seclists.org/fulldisclosure/2013/Nov/204
https://www.securitytracker.com/id/1029410
https://www.theregister.co.uk/2013/12/10/android_has_lockbypass_bug/
https://cureblog.de/2013/11/cve-2013-6271-remove-device-locks-from-android-phone/

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.