CVE-2021-27273

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 40.41% Top 5%
Vendor Advisory netgear.com
Affected: NETGEAR ProSAFE Network Management System
Published at:
Updated at:

References

Link Tags
https://kb.netgear.com/000062686/Security-Advisory-for-Post-Authentication-Command-Injection-on-NMS300-PSV-2020-0559 vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-356/ vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-27273?
CVE-2021-27273 has been scored as a high severity vulnerability.
How to fix CVE-2021-27273?
To fix CVE-2021-27273, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27273 being actively exploited in the wild?
It is possible that CVE-2021-27273 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~40% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27273?
CVE-2021-27273 affects NETGEAR ProSAFE Network Management System.
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