Advisory Details

May 25th, 2021

Synology DiskStation Manager webapi CRLF Injection Information Disclosure Vulnerability

CVE ID	CVE-2021-29084
CVSS SCORE	7.5, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AFFECTED VENDORS	Synology
AFFECTED PRODUCTS	DiskStation Manager
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on affected installations of Synology DS418play. Authentication is not required to exploit this vulnerability. The specific flaw exists within the webapi component. The issue results from incorrect neutralization of CRLF sequences in HTTP requests. An attacker can leverage this vulnerability to disclose information in the context of the Admin user.
ADDITIONAL DETAILS	Synology has issued an update to correct this vulnerability. More details can be found at: https://www.synology.com/en-uk/security/advisory/Synology_SA_20_26
DISCLOSURE TIMELINE	2021-01-19 - Vulnerability reported to vendor 2021-05-25 - Coordinated public release of advisory
CREDIT	Justin Taft (@oneupsecurity)

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