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CVE-2019-1476 PoC — Microsoft Windows和Microsoft Windows Server 安全漏洞

Source
https://github.com/sgabe/CVE-2019-1476
Associated Vulnerability
Title:Microsoft Windows和Microsoft Windows Server 安全漏洞 (CVE-2019-1476)
Description:An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1483.
Description
AppXSvc Arbitrary File Overwrite DoS
Readme
# CVE-2019-1476

## AppXSvc Arbitrary File Overwrite DoS

I have independently reported this vulnerability to MSRC as part of my research inspired by [CVE-2019-0841](https://github.com/rogue-kdc/CVE-2019-0841) originally reported by [Nabeel Ahmed](https://twitter.com/rogue_kdc). This vulnerability allows a regular user to overwrite arbitrary files. However, the attacker's capabilities are limited, due to the lack of control over the file's content, hence it's most likely usage is in various denial of service scenarios. See [Arbitrary file overwrite in AppXSvc](https://www.seljan.hu/posts/arbitrary-file-overwrite-in-appxsvc/) for more information.

![Video PoC](https://github.com/sgabe/CVE-2019-1476/blob/master/AppXSvcDoS.gif)
File Snapshot

 [4.0K]  /data/pocs/14a122c42bb513f85040c1908be3d5a0514f8b18
├── [4.0K]  AppXSvcDoS
│   ├── [6.0K]  AppXSvcDoS.cpp
│   ├── [2.9K]  AppXSvcDoS.rc
│   ├── [7.5K]  AppXSvcDoS.vcxproj
│   ├── [1.4K]  AppXSvcDoS.vcxproj.filters
│   ├── [ 384]  AppXSvcDoS.vcxproj.user
│   ├── [2.3K]  base64.cpp
│   ├── [ 374]  base64.h
│   ├── [3.5K]  CommonUtils.cpp
│   ├── [ 658]  CommonUtils.h
│   ├── [2.2K]  ntimports.h
│   ├── [ 293]  stdafx.cpp
│   ├── [ 301]  stdafx.h
│   ├── [ 306]  targetver.h
│   └── [1.3K]  typed_buffer.h
├── [502K]  AppXSvcDoS.gif
├── [ 58K]  AppXSvcDoS.png
├── [1.3K]  AppXSvcDoS.sln
└── [ 741]  README.md

1 directory, 18 files
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