SMM "Incursion" Attack

Lenovo Security Advisory: LEN-2015-002 Potential Impact: Execute arbitrary code, Bypass Secure Boot, Denial of Service, Escalation of Privilege Severity: Medium Summary: Some BIOS implementations permit unsafe System Management Mode SMM function calls to memory locations outside of System...

SMM

No description provided...

CVE-2016-5729

Lenovo BIOS EFI Driver allows local administrators to execute arbitrary code with System Management Mode SMM privileges via unspecified vectors...

Code injection

Lenovo BIOS EFI Driver allows local administrators to execute arbitrary code with System Management Mode SMM privileges via unspecified vectors...

CVE-2016-5729

CVE-2016-5729 is a Lenovo BIOS EFI Driver SMM code-execution vulnerability. A local attacker with administrative privileges can run arbitrary code in System Management Mode. Connected Lenovo advisory LEN-4901 confirms impact and provides per-product minimum fix versions (BIOS updates) to mitigate...

CVE-2016-5729

Lenovo BIOS EFI Driver allows local administrators to execute arbitrary code with System Management Mode SMM privileges via unspecified vectors...

SOL04362926 - BIOS SMM privilege escalation vulnerability CVE-2015-0949

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

Local APIC Elevation of Privilege

Summary: Intel is releasing mitigations for a privilege escalation issue. This issue affects certain Intel processors based on older Intel micro-architectures. The issue identified is a method that enables malicious code to gain access to System Management Mode SMM. Description: An issue was...

Linux/x86 memory sinkhole privilege escalation proof of concept Exploit

Exploit for linux platform in category local exploits ; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determin...

Linux/x86 Memory Sinkhole Proof Of Concept

; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determined by which register will be read out of the APIC ; fo...

Linux Kernel (x86) - Memory Sinkhole Privilege Escalation

; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determined by which register will be read out of the APIC ; fo...

Linux Kernel (x86) - Memory Sinkhole Privilege Escalation

Linux Kernel x86 - Memory Sinkhole Privilege Escalation ; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is...

BIOS implementations permit unsafe SMM function calls to memory locations outside of SMRAM

Overview Multiple BIOS implementations permit unsafe System Management Mode SMM function calls to memory locations outside of SMRAM. Description Multiple BIOS implementations permit unsafe System Management Mode SMM function calls to memory locations outside of SMRAM. According to Corey Kallenber...

Thunderstrike — Infecting Apple MacBooks with EFI Bootkit via Thunderbolt Ports

A security researcher has discovered an easy way to infect Apple’s Macintosh computers with an unusual kind of malware using its own Thunderbolt port. The hack was presented by programming expert Trammell Hudson at the annual Chaos Computer Congress 30C3 in Hamburg Germany. He demonstrated that i...

Intel® Desktop Boards Privilege Escalation

Summary: Software running administrative ring 0 privilege can under certain circumstances change code running in System Management Mode. Description: A new BIOS update is available for selected Intel desktop motherboards to ensure proper configuration settings. These changes would prevent a...

Intel Desktop Boards SMM Local Privilege Escalation Vulnerability (INTEL-SA-00022) - Linux

Intel Desktop Boards are prone to a local privilege escalation vulnerability. SPDX-FileCopyrightText: 2010 Greenbone AG 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-only ifdescription...

ASUS Eee PC主板BIOS SMM权限提升漏洞

BUGTRAQ ID: 35995 Eee PC是华硕推出的系列小型笔记本电脑。 华硕主板的BIOS固件包含有带有多个SMI处理器的特殊代码，在引导的时候这些处理器以系统管理模式运行并加载到受保护的内存部分（SMRAM）。 以下是其中的一个SMI处理器$SMISS处理器代码的反汇编： 0003F073: 50 push ax 0003F074: B4A1 mov ah,0A1 0003F076: 9A197D00F0 call 0F000:07D19 0003F07B: 2404 and al,004 0003F07D: 7414 je 00003F093 0003F07F: B434...

ASUS Eee PC and other series: BIOS SMM privilege escalation vulnerabilities

Numerous System Management Mode SMM privilege escalation vulnerabilities in ASUS motherboards including Eee PC series Release Date: 07.08.09 Timeline: March 08, 2009: first attempt to contact vendor, no response March 16, 2009: second attempt to contact vendor, no response July 18, 2009: CERT...

ASUS notebooks and motherboards privilege escalations

There are multiple possibilities for user with phisical memory access to execute code in high-pribileged SMM processor mode...

Intel System Management Mode Local Privilege Escalation (INTEL-SA-00018)

The version of the Intel BIOS on the remote host is vulnerable to an unspecified privilege escalation attack. Software running in ring 0 could potentially change code running in System Management Mode SMM. SMM is a privileged operating system that runs independently from the system's operating...