Insecure DLL loading in Autodesk Navisworks - CVE-2021-40161
Published: December 9, 2021
Vulnerability identifier: #VU58752
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-40161
CWE-ID: CWE-427
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the PDFTron component loads DLL libraries in an insecure manner. A remote attacker can place a specially crafted .dll file on a remote SMB fileshare, trick the victim into opening a PDF file from a remote location and execute arbitrary code on victim's system.
Affected software
Autodesk Navisworks
Revit
Revit
How to mitigate CVE-2021-40161
Install updates from vendor's website.
Autodesk Navisworks - addressed in versions 2019.6, 2020.4, 2021.3, 2022.1
Revit - addressed in versions 2020.2.5, 2021.1.4, 2022.1
Revit - addressed in versions 2020.2.5, 2021.1.4, 2022.1