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CVE-2022-29836— Post-Auth Path Traversal Vulnerability Allows to Custom Package Installation via HTTP API

Quick assessment

Affected
Western Digital My Cloud Home
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.

Western Digital My Cloud Home是美国西部数据（Western Digital）公司的一款易于使用的个人云存储设备。可直接插入 Wi-Fi 路由器，从而保护数字生活。 Western Digital My Cloud Home存在安全漏洞，该漏洞源于其HTTP API允许攻击者通过路径遍历滥用某些参数来指向文件系统上的随机位置或在这些位置启动自定义包的安装。以下版本受到影响：基于Linux的Western Digital My Cloud Home和My Cloud Home D

CVSS 1.9 · Low EPSS 0.33% · P24
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I. Basic Information for CVE-2022-29836

Vulnerability Information
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Vulnerability Title
Post-Auth Path Traversal Vulnerability Allows to Custom Package Installation via HTTP API
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability was discovered via an HTTP API on Western Digital My Cloud Home; My Cloud Home Duo; and SanDisk ibi devices that could allow an attacker to abuse certain parameters to point to random locations on the file system. This could also allow the attacker to initiate the installation of custom packages at these locations. This can only be exploited once the attacker has been authenticated to the device. This issue affects: Western Digital My Cloud Home and My Cloud Home Duo versions prior to 8.11.0-113 on Linux; SanDisk ibi versions prior to 8.11.0-113 on Linux.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Western Digital My Cloud Home 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Western Digital My Cloud Home是美国西部数据（Western Digital）公司的一款易于使用的个人云存储设备。可直接插入 Wi-Fi 路由器，从而保护数字生活。 Western Digital My Cloud Home存在安全漏洞，该漏洞源于其HTTP API允许攻击者通过路径遍历滥用某些参数来指向文件系统上的随机位置或在这些位置启动自定义包的安装。以下版本受到影响：基于Linux的Western Digital My Cloud Home和My Cloud Home D
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
Western Digital My Cloud Home My Cloud Home ~ 8.11.0-113 -
SanDisk ibi ibi ~ 8.11.0-113 -

II. Public POCs for CVE-2022-29836

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III. Intelligence Information for CVE-2022-29836

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Other References for CVE-2022-29836 (1)

IV. Related Vulnerabilities

Same product: My Cloud Home
Same vendor: Western Digital
Same weakness: CWE-22

V. Comments for CVE-2022-29836

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