Privilege escalation in nVidia NVS

1) Privilege escalation

EUVDB-ID: #VU1121

Risk: Medium

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2016-7382

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to obtain elevated privileges on the target system.
The weakness exists due to improper permissions check in the kernel mode layer (nvlddmkm.sys) handler, that allows a local attacker to gain access to arbitrary physical memory, leading to an escalation of privileges.
Successful exploitation of the vulnerability may result in privilege escalation.

Mitigation

Update Quadro and NVS to 342.00, 375.63.
Update GeForce to 375.63.

Vulnerable software versions

NVS: 340 - 375.63

Quadro: 340 - 375.63

NVIDIA Windows GPU Display Driver: 375 - 375.63

CPE2.3

• cpe:2.3:a:nvidia:nvs:340:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:nvs:342:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:nvs:375:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:quadro:340:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:quadro:342:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:quadro:375:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:nvidia_windows_gpu_display_driver:375:*:*:*:*:*:*:*
• cpe:2.3:a:nvidia:nvidia_windows_gpu_display_driver:375.63:*:*:*:*:*:*:*

External links

https://nvidia.custhelp.com/app/answers/detail/a_id/4247

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?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.