PT-2019-14968 · NetGear · Netgear Ac1200 R6220

Michael Flanders · Published 2019-10-10 · Updated 2020-10-09 · CVE-2019-17137

Positive Technologies (AI Summary)

CVSS v3.1

9.4

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H

Name of the Vulnerable Software and Affected Versions NETGEAR AC1200 R6220 Firmware version 1.1.0.86

Description This issue allows network-adjacent attackers to bypass authentication on affected installations. The flaw exists within the processing of path strings, specifically by inserting a null byte into the path, which enables the user to skip most authentication checks. An attacker can leverage this to bypass authentication on the system.

Recommendations For NETGEAR AC1200 R6220 Firmware version 1.1.0.86, consider restricting access to the mini httpd service until a patch is available. As a temporary workaround, avoid using path strings that can be manipulated by inserting null bytes. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-626

Related Identifiers

CVE-2019-17137

ZDI-19-866

Affected Products

Netgear Ac1200 R6220

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2019-17137 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-19-866 · Security Note
• https://osv.dev/vulnerability/CVE-2019-17137 · Vendor Advisory