What’s Vulnerable › Vulnerabilities

CVE-2017-17560

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 73.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-12-12 · updated 2026-06-17
• Weakness: CWE-287

Description

An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices. The web administration component, /web/jquery/uploader/multi_uploadify.php, provides multipart upload functionality that is accessible without authentication and can be used to place a file anywhere on the device's file system. This allows an attacker the ability to upload a PHP shell onto the device and obtain arbitrary code execution as root.

Affected products

• Westerndigital My Cloud Pr4100 Firmware: 2.30.172

References

• https://download.exploitee.rs/file/generic/Exploiteers-DEFCON25.pdf
• https://github.com/rapid7/metasploit-framework/pull/9248
• https://www.exploit-db.com/exploits/43356/
• https://download.exploitee.rs/file/generic/Exploiteers-DEFCON25.pdf
• https://github.com/rapid7/metasploit-framework/pull/9248
• https://www.exploit-db.com/exploits/43356/

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