Advisory Details

May 24th, 2023

Autodesk On-Demand Install Services Link Following Local Privilege Escalation Vulnerability

ZDI-23-712
ZDI-CAN-19227

CVE ID CVE-2023-27908
CVSS SCORE 7.8, AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Autodesk
AFFECTED PRODUCTS On-Demand Install Services
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Autodesk On-Demand Install Services. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the AdskAccessServiceHost service. By creating a symbolic link, an attacker can abuse the service to create a folder with a permissive DACL. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

ADDITIONAL DETAILS Autodesk has issued an update to correct this vulnerability. More details can be found at:
https://www.autodesk.com/trust/security-advisories/adsk-sa-2023-0010
DISCLOSURE TIMELINE
  • 2022-11-23 - Vulnerability reported to vendor
  • 2023-05-24 - Coordinated public release of advisory
CREDIT Filip Dragović
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