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CVE-2023-36723 is an elevation of privilege vulnerability in the Windows Container Manager Service. The flaw is caused by improper link resolution before file access, indicating the service can be induced to operate on a link target in an unsafe manner rather than validating the final resolved object before use. An attacker with local access and low privileges may exploit this condition to cause the service to perform privileged file operations in a security context higher than the attacker’s own. The vulnerability affects the Windows Container Manager Service and can be leveraged to obtain limited SYSTEM-level privileges.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a proof-of-concept (PoC) exploit for CVE-2023-36723, a local privilege escalation vulnerability in Microsoft Windows when the Windows Sandbox feature is enabled. The exploit targets a flaw in the Container Manager service's handling of directory and symbolic link creation within the Sandbox's BaseLayer directory. By manipulating directories and creating a symbolic link, the exploit causes the Sandbox to recreate a directory with overly permissive DACLs in C:\Windows\System32 (specifically, a directory named 'pwn'). This can be leveraged for further privilege escalation, such as executing code as SYSTEM via SxS assembly loading. The repository contains Visual Studio project files, a header (def.h) with helper functions and Windows API definitions, and the main exploit logic in main.cpp. The exploit is written in C++ and is intended for research and demonstration purposes, as noted in the README. No network or remote attack vector is present; the exploit is purely local and requires the attacker to have code execution on a Windows host with the Sandbox feature enabled.
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1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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