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CVE-2023-22815— Post-authentication remote command injection vulnerability on Western Digital My Cloud OS 5 devices

Quick assessment

Affected
Western Digital My Cloud OS 5
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 5.26.300之前版本存在命令注入漏洞，该漏洞源于发现了一个远程命令注入漏洞。

CVSS 6.2 · Medium EPSS 1.31% · P70
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I. Basic Information for CVE-2023-22815

Vulnerability Information
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Vulnerability Title
Post-authentication remote command injection vulnerability on Western Digital My Cloud OS 5 devices
Source: CVE Program / CVE List V5
Vulnerability Description
Post-authentication remote command injection vulnerability in Western Digital My Cloud OS 5 devices that could allow an attacker to execute code in the context of the root user on vulnerable CGI files. This vulnerability can only be exploited over the network and the attacker must already have admin/root privileges to carry out the exploit. An authentication bypass is required for this exploit, thereby making it more complex. The attack may not require user interaction. Since an attacker must already be authenticated, the confidentiality impact is low while the integrity and availability impact is high.  This issue affects My Cloud OS 5 devices: before 5.26.300.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Western Digital My Cloud 命令注入漏洞
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 5.26.300之前版本存在命令注入漏洞，该漏洞源于发现了一个远程命令注入漏洞。
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 OS 5 0 ~ 5.26.300 -

II. Public POCs for CVE-2023-22815

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III. Intelligence Information for CVE-2023-22815

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Other References for CVE-2023-22815 (1)

Same Patch Batch · Western Digital · 2023-06-30 · 3 CVEs total

CVE-2023-22814 10.0 CRITICAL Authentication Bypass issue in My Cloud OS 5 devices
CVE-2023-22816 6.0 MEDIUM Limited Post-Authentication Remote Command Injection in My Cloud Products

IV. Related Vulnerabilities

Same product: My Cloud OS 5
Same vendor: Western Digital
Same weakness: CWE-78

V. Comments for CVE-2023-22815

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