Advisory Published
Advisory Published

CVE-2024-24810: WiX is vulnerable to DLL redirection attacks that allow the attacker to escalate privileges

First published: Wed Feb 07 2024(Updated: )

### Summary .be TEMP folder is vulnerable to DLL redirection attacks that allow the attacker to escalate privileges. ### Details If the bundle is not run as admin, the user's TEMP folder is used and not the system TEMP folder. A utility is able to monitor the user's TEMP folder for changes and drop its own DLL into the **.be/<bundle>.Local** folder immediately when the .be folder is created. When the burn engine elevates, the malicious DLL receives elevated privileges. ### PoC As a standard, non-admin user: 1. Monitor the user's TEMP folder for changes using ReadDirectoryChangesW 2. On FILE_ACTION_ADDED, check if the folder name is .be 3. Create a folder in .be named after the bundle + .Local (e.g. MyInstaller.exe.Local) 4. Put the malicious COMCTL32.DLL in the .Local folder following the naming used for the real DLL (e.g. MyInstaller.exe.Local/x86_microsoft.windows.common-controls_.../COMCTL32.dll) 5. Do hacker things when the engine escalates and the malicious DLL is loaded Proper naming for the path can be obtained by using GetModuleHandle("comctl32.dll") and GetModuleFileName. ### Impact DLL redirection utilizing .exe.Local Windows capability. This impacts any installer built with the WiX installer framework.

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
FireGiant WiX Toolset<3.14.0
FireGiant WiX Toolset>=4.0.0<4.0.4

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.


SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203