CVE-2019-9939 Information

Description

The SHAREit application before 4.0.36 for Android allows a remote attacker (on the same network or joining public \open\ Wi-Fi hotspots created by the application when file transfer is initiated) to bypass authentication by trying to fetch a non-existing page. When the non-existing page is requested the application responds with a 200 status code and empty page and adds the requesting client device into the list of recognized devices.

CVSS Vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://blog.redforce.io/shareit-vulnerabilities-enable-unrestricted-access-to-adjacent-devices-files/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8

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