CVE Vulnerabilities

CVE-2019-17102

Time-of-check Time-of-use (TOCTOU) Race Condition

Published: Jan 27, 2020 | Modified: Feb 03, 2020
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

An exploitable command execution vulnerability exists in the recovery partition of Bitdefender BOX 2, version 2.0.1.91. The API method /api/update_setup does not perform firmware signature checks atomically, leading to an exploitable race condition (TOCTTOU) that allows arbitrary execution of system commands. This issue affects: Bitdefender Bitdefender BOX 2 versions prior to 2.1.47.36.

Weakness

The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

Affected Software

Name Vendor Start Version End Version
Box_2_firmware Bitdefender * *

Potential Mitigations

References