Advisory Details

February 6th, 2024

(Pwn2Own) Western Digital MyCloud PR4100 RESTSDK Uncontrolled Resource Consumption Denial-of-Service Vulnerability

ZDI-24-088
ZDI-CAN-22440

CVE ID CVE-2023-22819
CVSS SCORE 5.3, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AFFECTED VENDORS Western Digital
AFFECTED PRODUCTS MyCloud PR4100
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Western Digital MyCloud PR4100 NAS devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the RESTSDK server. The issue results from uncontrolled resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the device.

ADDITIONAL DETAILS Western Digital has issued an update to correct this vulnerability. More details can be found at:
https://www.westerndigital.com/support/product-security/wdc-24001-western-digital-my-cloud-os-5-my-cloud-home-duo-and-sandisk-ibi-firmware-update
DISCLOSURE TIMELINE
  • 2023-11-09 - Vulnerability reported to vendor
  • 2024-02-06 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated
CREDIT @_s_n_t of @pentestltd
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