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An elevation of privilege vulnerability exists in Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, Windows 10 (Gold, 1511, 1607, 1703), and Windows Server 2016 due to improper handling of calls to Advanced Local Procedure Call (ALPC). The vulnerability allows a local attacker to execute code with elevated privileges by exploiting the way ALPC requests are processed.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a proof-of-concept (POC) exploit for CVE-2017-11783, a vulnerability in Microsoft Windows involving ALPC-RPC. The exploit is implemented in Python and consists of two main code files: 'exe_var.py' (which defines constants, structures, and helper functions for Windows API interaction) and 'exploit.py' (the main exploit logic). The exploit demonstrates a race condition and manipulation of ALPC-RPC to create a file ('consent.exe.local') in the protected system32 directory, showing a write primitive that could be leveraged for privilege escalation. However, as noted in the README, the exploit does not achieve full system command execution by itself; further exploitation (such as using a UAC bypass with consent.exe) is required for complete privilege escalation. The code interacts with a specific ALPC-RPC endpoint (UUID BE7F785E-0E3A-4AB7-91DE-7E46E443BE29) and manipulates file permissions and security descriptors. The repository is structured as a POC and is not weaponized or part of a larger exploit framework.
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