Advisory Details

March 11th, 2022

Cisco Nexus Dashboard Fabric Controller AMF Deserialization of Untrusted Data Remote Code Execution Vulnerability

CVE ID	CVE-2017-5641
CVSS SCORE	7.3, AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AFFECTED VENDORS	Cisco
AFFECTED PRODUCTS	Nexus Dashboard Fabric Controller
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco Nexus Dashboard Fabric Controller. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the AMF protocol. Crafted data in an AMF protocol message can trigger the deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the fmserver user.
ADDITIONAL DETAILS	Fixed in version 11.5(4) or later
DISCLOSURE TIMELINE	2021-09-10 - Vulnerability reported to vendor 2022-03-11 - Coordinated public release of advisory
CREDIT	Pedro Ribeiro (@pedrib1337 \| pedrib@gmail.com) from Agile Information Security

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