Advisory Details

October 10th, 2019

NETGEAR AC1200 mini_httpd Poison Null Byte Authentication Bypass Vulnerability

CVE ID	CVE-2019-17137
CVSS SCORE	9.4, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
AFFECTED VENDORS	NETGEAR
AFFECTED PRODUCTS	AC1200
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR AC1200 Smart WiFi Router. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of path strings. By inserting a null byte into the path, the user can skip most authentication checks. An attacker can leverage this vulnerability to bypass authentication on the system.
ADDITIONAL DETAILS	Fixed in version 1.2.0.62
DISCLOSURE TIMELINE	2019-04-26 - Vulnerability reported to vendor 2019-10-10 - Coordinated public release of advisory 2020-01-06 - Advisory Updated
CREDIT	Michael Flanders of Trend Micro Zero Day Initiative

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