Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

CVE-2021-21551 Proof of concept exploit for CVE-2021-21551, vu...

Exploits and TrickBot disrupt manufacturing operations

September 2021 saw a huge spike of exploit detections against the manufacturing industry, with a distributed spread between California, Florida, Ohio, and Missouri. This is combined with heavy detections of unseen malware, identified through our AI engine, spiking in May as well as September 2021...

Driver-Based Attacks: Past and Present

"People that write Ring 0 code and write it badly are a danger to society." - Mickey Shkatov There is no security boundary between an administrator and the Windows kernel, according to the Microsoft Security Servicing Criteria for Windows. In our analysis of CVE-2021-21551, a write-what-where...

Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

DbUtilAx An extended proof-of-co...

Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

CVE-2021-21551 Simple PoC for exploiting CVE-2021-21551 for LP...

Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

Description Script to patch your domain computers about the CV...

Metasploit Wrap-Up

Dell DBUtil23.sys IOCTL memmove privilege escalation Our very own zeroSteiner added a new module, which exploits insufficient access control in Dell's dbutil23.sys firmware update driver included in the Dell Bios Utility that comes pre-installed with most Windows machines. The driver accepts...

Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

CVE-2021-21551 A PoC that exploits Dell's dbutil23 driver...

DELL dbutil_2_3.sys 2.3 - Arbitrary Write to Local Privilege Escalation (LPE)

Exploit Title: DELL dbutil23.sys 2.3 - Arbitrary Write to Local Privilege Escalation LPE Date: 10/05/2021 Exploit Author: Paolo Stagno aka VoidSec Version: include include include include define IOCTLCODE 0x9B0C1EC8 // IOCTLCODE value, used to reach the vulnerable function taken from IDA define...

DELL dbutil_2_3.sys 2.3 Arbitrary Write / Privilege Escalation

Exploit Title: DELL dbutil23.sys 2.3 - Arbitrary Write to Local Privilege Escalation LPE Date: 10/05/2021 Exploit Author: Paolo Stagno aka VoidSec Version: include include include include define IOCTLCODE 0x9B0C1EC8 // IOCTLCODE value, used to reach the vulnerable function taken from IDA define...

Dell DBUtil_2_3.sys IOCTL Memory Read / Write

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Dell DBUtil23.sys IOCTL memmove', 'Description' = %q The DBUtil23.sys driver distributed by Dell exposes an unprotected IOCTL interface that can ...

Exploit for Exposed IOCTL with Insufficient Access Control in Dell Dbutil

CVE-2021-21551 Exploit to SYSTEM for CVE-2021-21551 SpoolPrin...

BIOS PrivEsc Bugs Affect Hundreds of Millions of Dell PCs Worldwide

PC maker Dell has issued an update to fix multiple critical privilege escalation vulnerabilities that went undetected since 2009, potentially allowing attackers to gain kernel-mode privileges and cause a denial-of-service condition. The issues, reported to Dell by researchers from SentinelOne on...

CVE-2021-21551

creationtimestamp| type| source ---|---|--- 2021-05-04 17:42:38+00:00| seen| https://t.me/ctinow/32853 2021-05-04 17:46:59+00:00| published-proof-of-concept| Telegram/6Sh9mXzmjwiCqYDRD-Q41Yldre37LHa2LS4oXpBfWb-WGg 2021-05-05 04:17:06+00:00| published-proof-of-concept| https://t.me/alexmakus/4056...

Hundreds of Millions of Dell Users at Risk from Kernel-Privilege Bugs

Five high-severity security flaws in Dell’s firmware update driver are impacting potentially hundreds of millions of Dell desktops, laptops, notebooks and tablets, researchers said. The bugs have gone undisclosed for 12 years, and could allow the ability to bypass security products, execute code...

CVE-2021-21551

CVE-2021-21551 relates to the Dell dbutil_2_3.sys driver, with an insufficient access control vulnerability that enables local privilege escalation, DoS, or information disclosure for a locally authenticated user. Connected PoCs and analyses describe an IOCTL-driven path that allows arbitrary ker...