Arbitrary kernel access in ASRock RGB Driver AsrDrv103.sys
CVE-2020-15368 affects ASRock RGB/IO driver builds including AsrDrv103.sys and related variants such as AsrDrv106.sys, AsrDrv107.sys, AsrDrv107n.sys, AxtuDrv.sys, and AppShopDrv103.sys. The driver does not properly restrict access from user space and exposes dangerous low-level functionality through unprotected IOCTLs. The provided content specifically notes that user space can issue requests capable of manipulating privileged CPU state, demonstrated by triggering a triple fault via a request to zero CR3. Supporting context also associates this CVE with unprotected IOCTL commands that permit direct writes to arbitrary physical memory, enabling attacker-controlled kernel-level operations through a signed vendor driver.
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Impact, mitigation & remediation
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Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a local privilege escalation exploit for CVE-2020-15368, targeting the vulnerable ASRock AsrDrv107 driver on Windows. The exploit is implemented in C++ and consists of two main components: a user-mode launcher (AsrockPloit) and a custom kernel-mode payload (DummyDriver). The exploit works by opening a handle to the vulnerable driver (\\.\GlobalRoot\Device\AsrDrv107), crafting and encrypting IOCTL commands to read/write physical memory and control registers, and ultimately mapping and executing a custom driver (DummyDriver) in kernel space. The exploit also interacts with the Beep device (\\.\GlobalRoot\Device\Beep) to facilitate code injection. The repository includes code for parsing PDB symbols to resolve kernel function addresses, and uses a compile-time string encryption library for obfuscation. The exploit provides full kernel code execution, allowing for arbitrary actions at the highest privilege level. The structure is typical for a Windows kernel exploit: project files for Visual Studio, headers for driver communication and cryptography, and main logic in entry.cpp files for both user and kernel components.
This repository provides a full exploit and proof-of-concept for CVE-2020-15368, a vulnerability in the Asrock repackaged RWEverything driver (AsrDrv104) for Windows. The exploit consists of two main components: a custom kernel driver (MyDriver1) and a user-mode exploit (exploit.cpp). The exploit leverages the vulnerable driver's IOCTL interface, which is protected by weak encryption, to achieve arbitrary kernel memory read/write and ultimately execute arbitrary code in kernel mode. The exploit works by scanning physical memory for the driver's code, patching it to redirect execution to custom shellcode, and then restoring the original code to avoid system instability. The payload spawns a new kernel thread, allowing for privilege escalation and further kernel-level actions. The repository is structured as a Visual Studio solution with separate projects for the exploit and the custom driver. The main entry point is 'exploit/exploit.cpp', which orchestrates the attack. The exploit targets local Windows systems with the vulnerable driver installed and requires administrative privileges to interact with the device. No network endpoints are involved; all attack vectors are local. The exploit is operational and provides a working privilege escalation method for affected systems.
Affected products & vendors
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Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability associated with ASRock IO driver builds (AsrDrv107.sys and AsrDrv107n.sys) that exposes low-level privileged kernel and hardware access primitives, making it useful for tools like KDU.
A specific vulnerable Windows driver issue referenced as part of known vulnerable driver research and detection context.
A Windows driver vulnerability example where unprotected IOCTL handling enables arbitrary physical memory writes, which can be leveraged to execute untrusted code (kernel-level impact).
A vulnerability in an ASRock driver (referenced as CVE-2020-15368) that can be exploited by the LAZYCARGO component to load an unsigned driver (i.e., facilitate kernel/driver-level code execution via a vulnerable signed driver).
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.