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An elevation of privilege vulnerability in the Windows Backup Service. Specific technical details about the vulnerable code path, root cause, and exploitation mechanism are not available in the provided information. The issue affects the Windows Backup Service component and, if successfully exploited, allows an attacker to elevate privileges on the affected system.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository provides a proof-of-concept (PoC) exploit for CVE-2023-21752, an arbitrary file delete vulnerability in the Microsoft Windows Backup service. The repository is organized into two main versions: - v1: A minimal exploit that allows a local attacker to delete any file on the system by specifying its path. The exploit leverages opportunistic locks (oplocks), junctions, and symbolic links to trick the Backup service into deleting a file of the attacker's choice. The main entry point is 'v1/SDRsvcEop/main.cpp'. - v2: An advanced exploit that attempts to escalate privileges to SYSTEM by abusing the arbitrary file delete to overwrite a rollback (.rbs) file in 'C:\Config.msi', then launching an elevated command shell. This version is more complex, involving manipulation of the Windows Installer rollback mechanism and is less stable, often requiring multiple attempts and best run on a physical machine. The main entry point is 'v2/SDRsvcEop/main.cpp'. Both versions are implemented in C++ and require compilation with Visual Studio. The code makes extensive use of Windows API calls for file and directory manipulation, COM object instantiation, and privilege escalation techniques. The exploit is local-only and does not expose any network services. Key fingerprintable endpoints include the use of 'C:\Config.msi', alternate data streams, and UNC paths to the local machine. The exploit demonstrates a practical attack path for local privilege escalation on unpatched Windows systems.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A local privilege escalation vulnerability in Microsoft Windows, allowing attackers to gain elevated privileges on a compromised system.
An elevation-of-privilege vulnerability affecting Windows Backup Service.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.