Kernel Memory Access Vulnerability in MSI Dragon Center
CVE-2021-29337

7.8HIGH

Key Information:

Vendor

Msi

Status
Dragon Center
Vendor
CVE Published:
21 June 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-29337?

A vulnerability in the MODAPI.sys component of MSI Dragon Center version 2.0.104.0 allows low-privileged users to perform unauthorized access to kernel memory. By sending a specially crafted IOCTL (specifically, 0x9c406104), attackers can exploit the MmMapIoSpace feature to map physical memory. This access could potentially be used to escalate privileges, leading to unauthorized actions within the operating system.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-29337
Created by rjt-gupta

References

https://github.com/rjt-gupta/CVE-2021-29337
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.