#VU61621 Out-of-bounds read in Western Digital products - CVE-2022-23123

Vulnerability identifier: #VU61621

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-23123

CWE-ID: CWE-125

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 Gen 2
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
My Cloud Home
Client/Desktop applications / Other client software
My Cloud OS 5
Operating systems & Components / Operating system

Vendor: Western Digital

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the getdirparams method. A remote attacker can trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

My Cloud PR2100: All versions

My Cloud PR4100: All versions

My Cloud EX4100: All versions

My Cloud EX2 Ultra: All versions

My Cloud Mirror Gen 2: All versions

My Cloud DL2100: All versions

My Cloud DL4100: All versions

My Cloud EX2100: All versions

My Cloud: All versions

WD Cloud: All versions

My Cloud Home: All versions

My Cloud OS 5: before 5.19.117

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External links
https://www.westerndigital.com/support/product-security/wdc-22005-netatalk-security-vulnerabilities

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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.