Advisory Details

May 17th, 2023

(Pwn2Own) Synology DiskStation Manager Serv.php Authentication Bypass Vulnerability

CVE ID	CVE-2022-45188
CVSS SCORE	8.8, AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Synology
AFFECTED PRODUCTS	DiskStation Manager
VULNERABILITY DETAILS	This vulnerability allows remote attackers to bypass authentication on affected installations of Synology DiskStation Manager. This vulnerability does not require authentication, but does require some user interaction. The specific flaw exists within the Serv.php endpoint. The issue results from incorrect implementation of the authentication mechanism. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
ADDITIONAL DETAILS	Synology has issued an update to correct this vulnerability. More details can be found at: https://www.synology.com/en-global/security/advisory/Synology_SA_22_23
DISCLOSURE TIMELINE	2023-01-24 - Vulnerability reported to vendor 2023-05-17 - Coordinated public release of advisory 2023-07-27 - Advisory Updated
CREDIT	Claroty Research - Vera Mens, Noam Moshe, Uri Katz, Sharon Brizinov

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