#VU51481 Link following in Western Digital products - CVE-2021-3310
Published: March 15, 2021 / Updated: May 25, 2021
Vulnerability identifier: #VU51481
Vulnerability risk: High
CVSSv4.0: 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/E:P/U:Amber
CVE-ID: CVE-2021-3310
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
My Cloud EX2 Ultra
My Cloud Mirror Gen 2
My Cloud EX4100
My Cloud PR2100
My Cloud PR4100
My Cloud DL2100
My Cloud DL4100
My Cloud EX2100
My Cloud (P/N: WDBCTLxxxxxx-10)
My Cloud EX2 Ultra
My Cloud Mirror Gen 2
My Cloud EX4100
My Cloud PR2100
My Cloud PR4100
My Cloud DL2100
My Cloud DL4100
My Cloud EX2100
My Cloud (P/N: WDBCTLxxxxxx-10)
Software vendor:
Western Digital
Western Digital
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the affected software mishandle Symbolic Link Following within the SMB and AFP services. A remote attacker can create a symlink to read arbitrary files and gain access to sensitive information or execute arbitrary code on the system.
Remediation
Install updates from vendor's website.