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CVE-2022-22995— Western Digital My Cloud OS 5 and My Cloud Home Unauthenticated Arbitrary File Write Vulnerability in Netatalk

Quick assessment

Affected
Western Digital My Cloud
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是美国西部数据（Western Digital）公司的一款个人云存储设备。 Western Digital My Cloud OS 5 存在后置链接漏洞，该漏洞的存在是由于在 SMB 和 AFP 在其默认配置中提供的原语组合中文件上传期间文件验证不足。远程攻击者可以上传恶意文件并在服务器上执行。

CVSS 10.0 · Critical EPSS 2.73% · P86
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I. Basic Information for CVE-2022-22995

Vulnerability Information
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Vulnerability Title
Western Digital My Cloud OS 5 and My Cloud Home Unauthenticated Arbitrary File Write Vulnerability in Netatalk
Source: CVE Program / CVE List V5
Vulnerability Description
The combination of primitives offered by SMB and AFP in their default configuration allows the arbitrary writing of files. By exploiting these combination of primitives, an attacker can execute arbitrary code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Western Digital My Cloud 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Western Digital My Cloud是美国西部数据（Western Digital）公司的一款个人云存储设备。 Western Digital My Cloud OS 5 存在后置链接漏洞，该漏洞的存在是由于在 SMB 和 AFP 在其默认配置中提供的原语组合中文件上传期间文件验证不足。远程攻击者可以上传恶意文件并在服务器上执行。
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 My Cloud OS 5 ~ 5.19.117 -
Western Digital My Cloud Home My Cloud Home ~ 7.16-220 -

II. Public POCs for CVE-2022-22995

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III. Intelligence Information for CVE-2022-22995

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Vendor Advisories for CVE-2022-22995 (1)

Mailing List Discussions for CVE-2022-22995 (4)

Other References for CVE-2022-22995 (1)

IV. Related Vulnerabilities

Same product: My Cloud
Same vendor: Western Digital
Same weakness: CWE-59

V. Comments for CVE-2022-22995

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