Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-5357

Severity CVSS v4.0:
Pending analysis
Type:
CWE-427 Uncontrolled Search Path Element
Publication date:
28/05/2020
Last modified:
29/05/2020

Description

Dell Dock Firmware Update Utilities for Dell Client Consumer and Commercial docking stations contain an Arbitrary File Overwrite vulnerability. The vulnerability is limited to the Dell Dock Firmware Update Utilities during the time window while being executed by an administrator. During this time window, a locally authenticated low-privileged malicious user could exploit this vulnerability by tricking an administrator into overwriting arbitrary files via a symlink attack. The vulnerability does not affect the actual binary payload that the update utility delivers.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.00 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): High

Base Score 3.x
6.00
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:H/Au:N/C:N/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 2.60 LOW
Vector: AV:L/AC:H/Au:N/C:N/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
2.60
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:dell:dock_wd15_firmware:*:*:*:*:*:*:*:* 1.0.8 (excluding)
cpe:2.3:h:dell:dock_wd15:-:*:*:*:*:*:*:*
cpe:2.3:o:dell:dock_wd19_firmware:*:*:*:*:*:*:*:* 1.0.14 (excluding)
cpe:2.3:h:dell:dock_wd19:-:*:*:*:*:*:*:*
cpe:2.3:o:dell:thunderbolt_dock_tb16_firmware:*:*:*:*:*:*:*:* 1.0.4 (excluding)
cpe:2.3:h:dell:thunderbolt_dock_tb16:-:*:*:*:*:*:*:*
cpe:2.3:o:dell:precision_dual_usb-c_thunderbolt_dock_-_tb18dc_firmware:*:*:*:*:*:*:*:* 1.0.10 (excluding)
cpe:2.3:h:dell:precision_dual_usb-c_thunderbolt_dock_-_tb18dc:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools