CVE-2023-20562

7.8HIGH

Key Information:

Vendor
Amd
Status
Μprof
Vendor
CVE Published:
8 August 2023

Badges

👾 Exploit Exists🟡 Public PoC

Summary

An insufficient validation flaw in the IOCTL input buffer of AMD uProf may enable an authenticated user to load an unsigned driver. This weakness poses a risk as it could potentially lead to arbitrary execution within the kernel, allowing for unauthorized access to system resources. Users are encouraged to review their configurations and apply necessary mitigations as recommended by AMD.

Affected Version(s)

μProf x86 various

μProf x86 various < 4.1-424

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.

HITCON-2023-Demo-CVE-2023-20562
Created by zeze-zeze

HITCON-2023-Demo-CVE-2023-20562
Created by passwa11

References

https://www.amd.com/en/corporate/product-security/bulleti...
vendor-advisory

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

.