Windows 已重定向驱动器缓冲子系统驱动程序信息泄露漏洞

CVE编号

CVE-2021-38635

利用情况

暂无

补丁情况

N/A

披露时间

2021-09-14

漏洞描述

Microsoft microsoft Windows Redirected Drive Buffering是美国微软（Microsoft）公司的重定向驱动器缓冲子系统 (RDBSS) 作为内核模式文件系统驱动程序rdbss.sys 提供，它包含在操作系统中，作为静态库rdbsslib.lib 提供，它包含在 Windows 驱动程序工具包 (WDK) 中）。 microsoft Windows Redirected Drive Buffering存在信息泄露漏洞。 以下产品和版本受到影响：Windows 10 Version 1809 for x64-based Systems,Windows 10 Version 1809 for ARM64-based Systems,Windows Server 2019,Windows Server 2019 (Server Core installation),Windows 10 Version 1909 for 32-bit Systems,Windows 10 Version 1909 for x64-based Systems,Windows 10 Version 1909 for ARM64-based Systems,Windows Server, version 20H2 (Server Core Installation),Windows 10 for 32-bit Systems,Windows 10 for x64-based Systems,Windows RT 8.1,Windows Server 2008 for 32-bit Systems Service Pack 2,Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation),Windows 10 Version 1809 for 32-bit Systems,Windows 7 for x64-based Systems Service Pack 1,Windows 8.1 for 32-bit systems,Windows 8.1 for x64-based systems,Windows Server 2008 for x64-based Systems Service Pack 2,Windows 10 Version 20H2 for x64-based Systems,Windows 10 Version 20H2 for 32-bit Systems,Windows 10 Version 20H2 for ARM64-based Systems,Windows 10 Version 1607 for 32-bit Systems,Windows 10 Version 1607 for x64-based Systems,Windows Server 2016,Windows 10 Version 21H1 for 32-bit Systems,Windows Server 2022,Windows Server 2022 (Server Core installation),Windows 10 Version 2004 for 32-bit Systems,Windows Server, version 2004 (Server Core installation),Windows Server 2016 (Server Core installation),Windows 7 for 32-bit Systems Service Pack 1,Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation),Windows 10 Version 21H1 for x64-based Systems,Windows 10 Version 2004 for x64-based Systems,Windows Server 2008 R2 for x64-based Systems Service Pack 1,Windows 10 Version 21H1 for ARM64-based Systems,Windows 10 Version 2004 for ARM64-based Systems,Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation),Windows Server 2012,Windows Server 2012 (Server Core installation),Windows Server 2012 R2,Windows Server 2012 R2 (Server Core installation)

解决建议

目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38635

参考链接
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38635
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38635
https://vigilance.fr/vulnerability/Microsoft-Windows-vulnerabilities-of-Septe...
https://www.cybersecurity-help.cz/vdb/SB2021091438

CVSS3评分 5.5

• 攻击路径 本地
• 攻击复杂度 低
• 权限要求 低
• 影响范围 未更改
• 用户交互 无
• 可用性 无
• 保密性 高
• 完整性 无

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE-ID	漏洞类型
NVD-CWE-noinfo

Exp相关链接

- avd.aliyun.com