Unrestricted file upload in WD My Cloud - #VU9872
Published: January 8, 2018
Vulnerability identifier: #VU9872
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable device.
The vulnerability exists due to improper validation of file extension in "/usr/local/modules/web/pages/jquery/uploader/multi_uploadify.php" scrpit before uploading files via the "/mydlink/mydlink.cgi" URI. A remote unauthenticated attacker can send a specially crafted HTTP POST request to vulnerable device and upload arbitrary file on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable device.
Note: description of this vulnerability was updated according to GulfTech advisory.
The vulnerability exists due to improper validation of file extension in "/usr/local/modules/web/pages/jquery/uploader/multi_uploadify.php" scrpit before uploading files via the "/mydlink/mydlink.cgi" URI. A remote unauthenticated attacker can send a specially crafted HTTP POST request to vulnerable device and upload arbitrary file on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable device.
Note: description of this vulnerability was updated according to GulfTech advisory.
Affected software
WD My Cloud
Remediation
Update to version 2.30.172.