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GHSA-8v28-3g86-chj5.json
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GHSA-8v28-3g86-chj5.json
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{
"schema_version": "1.4.0",
"id": "GHSA-8v28-3g86-chj5",
"modified": "2024-02-08T18:24:35Z",
"published": "2024-02-08T18:24:35Z",
"aliases": [
],
"summary": "PanelSwWix4.Sdk .be TEMP folder is vulnerable to DLL redirection attacks that allow the attacker to escalate privileges",
"details": "# Summary\n\n.be TEMP folder is vulnerable to DLL redirection attacks that allow the attacker to escalate privileges.\n\n# Details\n\nIf 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/.Local folder immediately when the .be folder is created. When the burn engine elevates, the malicious DLL receives elevated privileges.\n\n# PoC\n\nAs a standard, non-admin user:\n\n1. Monitor the user's TEMP folder for changes using ReadDirectoryChangesW\n1. On FILE_ACTION_ADDED, check if the folder name is .be\n1. Create a folder in .be named after the bundle + .Local (e.g. MyInstaller.exe.Local)\n1. 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)\n1. Do hacker things when the engine escalates and the malicious DLL is loaded\n\nProper naming for the path can be obtained by using GetModuleHandle(\"comctl32.dll\") and GetModuleFileName.\n\n# Impact\n\nDLL redirection utilizing .exe.Local Windows capability. This impacts any installer built with the WiX installer framework.\n",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "PanelSwWix4.Sdk"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.0.0-psw-wix.0251-40"
}
]
}
]
}
],
"references": [
{
"type": "WEB",
"url": "https://github.com/nirbar/wix4/security/advisories/GHSA-8v28-3g86-chj5"
},
{
"type": "PACKAGE",
"url": "https://github.com/nirbar/wix4"
}
],
"database_specific": {
"cwe_ids": [
"CWE-426"
],
"severity": "HIGH",
"github_reviewed": true,
"github_reviewed_at": "2024-02-08T18:24:35Z",
"nvd_published_at": null
}
}