CVE-2021-1091
Quick assessment
Affected
NVIDIA NVIDIA GPU Display Driver
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Nvidia GPU Display Driver是美国英伟达（Nvidia）公司的一个用于操作系统中对显卡显示模块进行交互支持的驱动软件。 Nvidia GPU Display Driver存在后置链接漏洞，该漏洞源于产品对硬链接处理不当，本地攻击者可通过在系统上创建到关键文件的硬链接，并使用提升的权限覆盖它。以下产品及版本受到影响：NVIDIA Windows GPU Display Driver 462.96 之前版本，NVIDIA Windows GPU Display Driver 471.41
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1134 · Access Token Manipulation
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I. Basic Information for CVE-2021-1091
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
NVIDIA GPU Display driver for Windows contains a vulnerability where an unprivileged user can create a file hard link that causes the driver to overwrite a file that requires elevated privilege to modify, which could lead to data loss or denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Nvidia GPU Display Driver 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nvidia GPU Display Driver是美国英伟达（Nvidia）公司的一个用于操作系统中对显卡显示模块进行交互支持的驱动软件。 Nvidia GPU Display Driver存在后置链接漏洞，该漏洞源于产品对硬链接处理不当，本地攻击者可通过在系统上创建到关键文件的硬链接，并使用提升的权限覆盖它。以下产品及版本受到影响：NVIDIA Windows GPU Display Driver 462.96 之前版本，NVIDIA Windows GPU Display Driver 471.41
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NVIDIA | NVIDIA GPU Display Driver | All GPU Driver versions | - |
|
II. Public POCs for CVE-2021-1091
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-1091 (1)
-
https://nvidia.custhelp.com/app/answers/detail/a_id/5211 x_refsource_CONFIRM
Same Patch Batch · NVIDIA · 2021-07-22 · 8 CVEs total
| CVE-2021-1089 | 7.8 HIGH | Nvidia GPU Display Driver 代码问题漏洞 |
| CVE-2021-1090 | 7.1 HIGH | NVIDIA Windows GPU Display Driver 缓冲区错误漏洞 |
| CVE-2021-1092 | 7.1 HIGH | NVIDIA GPU Display Driver 后置链接漏洞 |
| CVE-2021-1093 | 6.2 MEDIUM | Nvidia GPU Display Driver 代码问题漏洞 |
| CVE-2021-1094 | 6.1 MEDIUM | Nvidia GPU Display Driver 缓冲区错误漏洞 |
| CVE-2021-1095 | 5.5 MEDIUM | Nvidia GPU Display Driver 代码问题漏洞 |
| CVE-2021-1096 | 5.5 MEDIUM | NVIDIA Windows GPU Display Driver 代码问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-1091
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