Auth bypass in Amd Atillk64
CVE-2020-12138
AMD ATI atillk64.sys 5.11.9.0 allows low-privileged users to interact directly with physical memory by calling one of several driver routines that map physical memory into the virtual address space of the calling process. This could enable low-privileged users to achieve NT AUTHORITY\SYSTEM privileges via a DeviceIoControl call associated with MmMapIoSpace, IoAllocateMdl, MmBuildMdlForNonPagedPool, or MmMapLockedPages.
Vulnerability class: Broken Access Control
EPSS: 0.033 (87.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Amd Atillk64 — versions 5.11.9.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
- 0xcyberpj/windows-exploitation
- 0xpetros/windows-privilage-escalation
- FULLSHADE/WindowsExploitationResources
- MustafaNafizDurukan/WindowsKernelExploitationResources
- NitroA/windowsexpoitationresources
- NullArray/WinKernel-Resources
- Ondrik8/exploit
- TamilHackz/windows-exploitation
- lsc1226844309/hanker1
- sereok3/buffer-overflow-writeups
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-12138?
- CVE-2020-12138 is a high-severity vulnerability in Amd Atillk64, classified under Missing Authorization. CVSS score: 8.8/10. Published 2020-04-27.
- How severe is CVE-2020-12138?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-12138 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.