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CVE-2019-0986 is an elevation of privilege vulnerability in the Windows User Profile Service (ProfSvc) due to improper handling of symbolic links. An authenticated attacker can exploit this by running a specially crafted application that abuses symlink handling to delete arbitrary files or folders with elevated privileges. The vulnerability arises from ProfSvc not properly validating or restricting symlink operations, allowing attackers to redirect privileged file operations to unintended locations.
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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-2019-0986, a vulnerability in the Microsoft Windows User Profile Service (ProfSvc.dll). The exploit is implemented as a C# .NET console application (NtDataPoc.exe) and is designed to delete all files within an arbitrary directory, bypassing normal file permission checks. The exploit works by impersonating a user and leveraging Windows native APIs to manipulate file system objects, including hard links and junction points. The main entry point is Program.cs, which handles user impersonation, logging, and the core exploit logic. The exploit requires the attacker to have a user account on the system (but not an active session) and an existing home directory. The README provides detailed usage instructions and describes the vulnerability and exploitation scenario. The codebase is structured with helper classes for file system manipulation, user impersonation, and process management. No network or remote attack vectors are present; this is a local privilege escalation/abuse exploit targeting Windows 8.1 and 10 systems.
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