Improper Authentication in Microsoft YourPhone Application for Android

1) Improper Authentication

EUVDB-ID: #VU26865

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0943

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists in Microsoft YourPhoneCompanion application for Android, in the way the application processes notifications generated by work profiles. An attacker with physical access to the device can bypass authentication process and view notifications.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Your Phone Companion App for Android: All versions

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0943

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.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to perform certain actions on the device.

Is there known malware, which exploits this vulnerability?

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