#VU86124 Resource exhaustion in Western Digital products - CVE-2023-22819

Vulnerability identifier: #VU86124

Vulnerability risk: Medium

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

CVE-ID: CVE-2023-22819

CWE-ID: CWE-400

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 (Glacier)
Hardware solutions / Firmware
My Cloud Home
Client/Desktop applications / Other client software
My Cloud Home Duo
Client/Desktop applications / Other client software
SanDisk ibi
Client/Desktop applications / Other client software

Vendor: Western Digital

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the RESTSDK server. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

My Cloud PR2100: before 5.27.161

My Cloud PR4100: before 5.27.161

My Cloud EX4100: before 5.27.161

My Cloud EX2 Ultra: before 5.27.161

My Cloud Mirror G2: before 5.27.161

My Cloud DL2100: before 5.27.161

My Cloud DL4100: before 5.27.161

My Cloud EX2100: before 5.27.161

My Cloud (Glacier): before 5.27.161

WD Cloud: before 5.27.161

My Cloud Home: before 9.5.1-104

My Cloud Home Duo: before 9.5.1-104

SanDisk ibi: before 9.5.1-104

---

External links
https://www.westerndigital.com/support/product-security/wdc-24001-western-digital-my-cloud-os-5-my-cloud-home-duo-and-sandisk-ibi-firmware-update
https://www.zerodayinitiative.com/advisories/ZDI-24-088/

---

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.