PT-2021-17378 · NetGear · Netgear Prosafe Network Management System

Rgod · Published 2021-03-26 · Updated 2021-03-30 · CVE-2021-27274

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions NETGEAR ProSAFE Network Management System version 1.6.0.26

Description This issue allows remote attackers to execute arbitrary code on affected installations. Authentication is not required to exploit this issue. The flaw exists within the MFileUploadController class due to the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this issue to execute code in the context of SYSTEM.

Recommendations For NETGEAR ProSAFE Network Management System version 1.6.0.26, consider disabling the MFileUploadController class until a patch is available to prevent exploitation. Restrict access to file operations to minimize the risk of arbitrary code execution. Avoid using user-supplied paths in file operations until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2021-27274

ZDI-21-357

Affected Products

Netgear Prosafe Network Management System

References · 5

• https://osv.dev/vulnerability/CVE-2021-27274 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-357 · Security Note
• https://kb.netgear.com/000062688/Security-Advisory-for-Pre-Authentication-Command-Injection-on-NMS300-PSV-2020-0560 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27274 · Security Note
• https://t.me/cvenotify/12336 · Telegram Post