CVE-2024-24810
WiX Toolset's .be TEMP folder is vulnerable to DLL redirection attacks that allow the attacker to escalate privileges
描述
### 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.
如何修補 CVE-2024-24810
要修補 CVE-2024-24810,請將受影響套件升級到下列已修補版本。
- —升級至 4.0.4 或更新版本
CVE-2024-24810 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 4.0.0, < 4.0.4
CVSS 分數
| 來源 | 版本 |
|---|