CVE-2020-10713 PoC — grub2 缓冲区错误漏洞

Source

Associated Vulnerability

Title: grub2 缓冲区错误漏洞 (CVE-2020-10713)
Description:A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Description

BootHole vulnerability (CVE-2020-10713). detection script, links and other mitigation related materials

Readme

# BootHole
## General information
This repository was created to contain relevant helpful scripts and any additional tools or information that
can assist others in managing their BootHole vulnerability mitigation plans.

## Windows Based Platforms
We have created a Powershell script that will check the EFI System Partition for signed executable files that were revoked by Microsoft in the BootHole DBX Update

## Linux Based Platforms
Similarly to the Windows Powershell script above,  we have also created a Linux Bash script that will check for any signed executable files revoked in the BootHole DBX update .


# If you encounter any issues please report them and we will try our best to assist you as soon as we can.

File Snapshot

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