Advisory Details

March 26th, 2021

NETGEAR ProSAFE Network Management System MFileUploadController Unrestricted File Upload Remote Code Execution Vulnerability

ZDI-21-357
ZDI-CAN-12124

CVE ID CVE-2021-27274
CVSS SCORE 9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS NETGEAR
AFFECTED PRODUCTS ProSAFE Network Management System
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the MFileUploadController class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

ADDITIONAL DETAILS NETGEAR has issued an update to correct this vulnerability. More details can be found at:
https://kb.netgear.com/000062688/Security-Advisory-for-Pre-Authentication-Command-Injection-on-NMS300-PSV-2020-0560
DISCLOSURE TIMELINE
  • 2020-10-30 - Vulnerability reported to vendor
  • 2021-03-26 - Coordinated public release of advisory
CREDIT rgod
BACK TO ADVISORIES