Advisory Details

February 9th, 2021

Cisco Multiple Routers Authorization Header Command Injection Remote Code Execution Vulnerability

CVE ID
CVSS SCORE	8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Cisco
AFFECTED PRODUCTS	Multiple Routers
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV16x and RV26x routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of file downloads. When parsing the Authorization header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.
ADDITIONAL DETAILS	Fixed in version 1.0.01.02
DISCLOSURE TIMELINE	2020-10-21 - Vulnerability reported to vendor 2021-02-09 - Coordinated public release of advisory
CREDIT	T Shiomitsu

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