Vulnerability · Published Mar 29, 2021 · Assigned by zdi

CVE-2021-27273

High 8.8

In plain English

A high-severity OS command injection in ProSAFE Network Management System from NETGEAR. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 66.0% (higher than 99.3% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)66.0%top 0.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System 1.6.0.26. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the SettingConfigController class. When parsing the fileName parameter, 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 SYSTEM. Was ZDI-CAN-12121.

Affected products (as reported)

Vendor	Product	Versions
NETGEAR	ProSAFE Network Management System	1.6.0.26

Weakness: CWE-78 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://kb.netgear.com/000062686/Security-Advisory-for-Post-Authentication-Command-Injection-on-NMS300-PSV-2020-0559 x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-21-356/ x_refsource_MISC