Privilege escalation in Microsoft Windows Win32k driver
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-29336 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU75900
Risk: High
CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2023-29336
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The
vulnerability exists due to a boundary error within the Win32k driver. A
local user can trigger a use-after-free error and execute arbitrary code
with SYSTEM privileges.
Install updates from vendor's website.
Vulnerable software versionsWindows: 10 - 10 S
Windows Server: 2008 - 2016 10.0.14393.10
CPE2.3- cpe:2.3:o:microsoft:windows:10 1607:10.0.14393.10:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 22H2:10.0.19045.2130:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 21H2:10.0.19044.1288:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 21H1:10.0.19043.985:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1507:10.0.10240.16405:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 20H2:10.0.19042.572:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 2004:10.0.19041.264:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1909:10.0.18363.476:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1903:10.0.18362.116:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1809:10.0.17763.1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1803:10.0.17134.48:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1709:10.0.16299.19:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1703:10.0.15063.138:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows:10 1511:10.0.10586.3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:2008:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:2008 R2:*:*:*:*:*:*:*
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-29336
http://www.numencyber.com/cve-2023-29336-win32k-analysis/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
