SB2018021225 - Incorrect permission assignment for critical resource in Google, Google Android

Description

This security bulletin contains information about 1 vulnerability.

1) Incorrect permission assignment for critical resource (CVE-ID: CVE-2017-13236)

CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local authenticated user to execute arbitrary code.

In the KeyStore service, there is a permissions bypass that allows access to protected resources. This could lead to local escalation of privilege with system execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: 8.0, 8.1. Android ID: A-68217699.

Remediation

Install update from vendor's website.

References

• http://www.securityfocus.com/bid/102979
• https://source.android.com/security/bulletin/2018-02-01
• https://www.exploit-db.com/exploits/43996/