#VU71211 Command Injection in Western Digital products - CVE-2022-29842

Vulnerability identifier: #VU71211

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-29842

CWE-ID: CWE-77

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
My Cloud PR2100
Hardware solutions / Other hardware appliances
My Cloud PR4100
Hardware solutions / Other hardware appliances
My Cloud EX4100
Hardware solutions / Other hardware appliances
My Cloud EX2 Ultra
Hardware solutions / Other hardware appliances
My Cloud Mirror G2
Hardware solutions / Other hardware appliances
My Cloud DL2100
Hardware solutions / Other hardware appliances
My Cloud DL4100
Hardware solutions / Other hardware appliances
My Cloud EX2100
Hardware solutions / Other hardware appliances
WD Cloud
Hardware solutions / Other hardware appliances
My Cloud
Hardware solutions / Office equipment, IP-phones, print servers

Vendor: Western Digital

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation within the account_mgr cgi script. A remote attacker can use a specially crafted CGI file and execute arbitrary commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

My Cloud PR2100: before 5.26.119

My Cloud PR4100: before 5.26.119

My Cloud EX4100: before 5.26.119

My Cloud EX2 Ultra: before 5.26.119

My Cloud Mirror G2: before 5.26.119

My Cloud DL2100: before 5.26.119

My Cloud DL4100: before 5.26.119

My Cloud EX2100: before 5.26.119

My Cloud: before 5.26.119

WD Cloud: before 5.26.119

---

External links
https://www.westerndigital.com/support/product-security/wdc-23002-my-cloud-firmware-version-5-26-119
https://www.zerodayinitiative.com/advisories/ZDI-23-852/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.