2011/2012 Mac EFI firmware leaves BCM4331 wireless enabled when transferring control to the bootloader/OS

The EFI firmware on Macs contains a full-fledged network stack for downloading OS X images from osrecovery.apple.com. Unfortunately on Macs introduced 2011 and 2012, EFI brings up the Broadcom 4331 wireless card on every boot and leaves it enabled even after ExitBootServices has been called. The...

FreeBSD : grub2-bhyve -- multiple privilege escalations (9d6a48a7-4dad-11ea-8a1d-7085c25400ea)

Reno Robert reports : FreeBSD uses a two-process model for running a VM. For booting non-FreeBSD guests, a modified grub-emu is used grub-bhyve. Grub-bhyve executes command from guest grub.cfg file. This is a security problem because grub was never written to handle inputs from OS as untrusted. I...

Fedora Update for grub2 FEDORA-2019-e99ebf23c8

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

grub2-bhyve -- multiple privilege escalations

Reno Robert reports: FreeBSD uses a two-process model for running a VM. For booting non-FreeBSD guests, a modified grub-emu is used grub-bhyve. Grub-bhyve executes command from guest grub.cfg file. This is a security problem because grub was never written to handle inputs from OS as untrusted. In...

AZL-41815 CVE-2014-3591 affecting package grub2 for versions less than 2.06-25

Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during...

[SECURITY] Fedora 31 Update: grub2-2.02-103.fc31

The GRand Unified Bootloader GRUB is a highly configurable and customizable bootloader with modular architecture. It supports a rich variety of kernel formats, file systems, computer architectures and hardware devices...

Gather GRUB Password

This module gathers GRUB passwords from GRUB bootloader config files. This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Gather GRUB Password', 'Description' = %q This module gathers GRUB password...

[SECURITY] Fedora 30 Update: grub2-2.02-75.fc30

The GRand Unified Bootloader GRUB is a highly configurable and customizable bootloader with modular architecture. It supports a rich variety of kernel formats, file systems, computer architectures and hardware devices...

Linux: GRUB bootloader password

GRUB is the bootloader mainly used on Linux systems. If protected with a password, users can not enter or change boot parameters without a password. SPDX-FileCopyrightText: 2019 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective...

AZL-41702 CVE-2017-7526 affecting package grub2 for versions less than 2.06-25

libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This...

JShielder - Automates The Process Of Installing All The Necessary Packages To Host A Web Application And Hardening A Linux Server

JSHielder is an Open Source tool developed to help SysAdmin and developers secure there Linux Servers in which they will be deploying any web application or services. This tool automates the process of installing all the necessary packages to host a web application and Hardening a Linux server wi...

CVE-2016-0235

IBM Security Guardium Database Activity Monitor 10 allows local users to have unspecified impact by leveraging administrator access to a hardcoded password, related to use on GRUB systems. IBM X-Force ID: 110326...

CVE-2016-0235

IBM Security Guardium Database Activity Monitor 10 allows local users to have unspecified impact by leveraging administrator access to a hardcoded password, related to use on GRUB systems. IBM X-Force ID: 110326...

CVE-2016-0235

IBM Security Guardium Database Activity Monitor 10 allows local users to have unspecified impact by leveraging administrator access to a hardcoded password, related to use on GRUB systems. IBM X-Force ID: 110326...

Hardcoded credentials

IBM Security Guardium Database Activity Monitor 10 allows local users to have unspecified impact by leveraging administrator access to a hardcoded password, related to use on GRUB systems. IBM X-Force ID: 110326...

CVE-2016-0235

CVE-2016-0235 affects IBM Security Guardium Database Activity Monitor V10, where a hard-coded password available to an administrator or root user enables potential access across GRUB-based systems. The root cause is use of a hard-coded credential within the Guardium component, allowing local acce...

CVE-2016-0235

IBM Security Guardium Database Activity Monitor 10 allows local users to have unspecified impact by leveraging administrator access to a hardcoded password, related to use on GRUB systems. IBM X-Force ID: 110326...

Red Hat Single User Mode

The remote Red Hat system does not have authorization for single user mode enabled. An attacker with physical access can enter single user mode with root privileges via the LILO or GRUB boot menu. TRUSTED...

Barracuda WAF V360 Firmware 8.0.1.014 Early Boot Root Shell Exploit

Firmware reversing of the Barracuda Web Application Firewall uncovered debug features that should have been removed on the production images. Appending a debugging statement onto a grub configuration line leads to an early boot root shell. Firmware version 8.0.1.014 is affected. Title: Barracuda...

Barracuda WAF V360 Firmware 8.0.1.014 Grub Password Complexity Vulnerability

The grub password for all Barracuda WAF V360 virtual appliances is four characters in length and, as a result, may be trivially easy to crack. Firmware version 8.0.1.014 is affected. Title: Barracuda WAF Grub Password Complexity 1. Vulnerability Details Affected Vendor: Barracuda Affected Product...