CVE Vulnerabilities

CVE-2023-28071

Improper Link Resolution Before File Access ('Link Following')

Published: Jun 23, 2023 | Modified: Jun 30, 2023
CVSS 3.x
7.1
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Dell Command | Update, Dell Update, and Alienware Update versions 4.9.0, A01 and prior contain an Insecure Operation on Windows Junction / Mount Point vulnerability. A local malicious user could potentially exploit this vulnerability to create arbitrary folder leading to permanent Denial of Service (DOS).

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Alienware_update Dell * 4.9.0 (excluding)
Alienware_update Dell 4.9.0-a01 (including) 4.9.0-a01 (including)
Command_update Dell * 4.9.0 (excluding)
Command_update Dell 4.9.0-a01 (including) 4.9.0-a01 (including)
Update Dell * 4.9.0 (excluding)
Update Dell 4.9.0-a01 (including) 4.9.0-a01 (including)

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References