CVE-2021-27276 Path traversal in ProSAFE Network Management System
Remote attackers can delete arbitrary files and cause denial of service via path traversal in NETGEAR ProSAFE NMS, bypassing authentication.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-27276?
CVE-2021-27276 is a high-severity path traversal vulnerability in NETGEAR ProSAFE Network Management System, published on 29 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
This vulnerability allows remote attackers to delete arbitrary files 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 MibController class. When parsing the realName parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12122.
Weakness: CWE-22
Which versions are affected by CVE-2021-27276?
It affects 1 product.
Products include Netgear Prosafe Network Management System.
How do I fix CVE-2021-27276?
No fix has been published for CVE-2021-27276 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-27276 being exploited?
There is no known exploitation of CVE-2021-27276 in the wild and no public exploit code.
Other vulnerabilities in NETGEAR ProSAFE Network Management System
- CVE-2023-38096 NETGEAR ProSAFE Network Management System MyHandlerInterceptor Authentication Bypass Vulnerability
- CVE-2023-49693 NETGEAR ProSAFE Network Management System RCE via Unprotected Access to Java Debug Wire Protocol
- CVE-2021-27274 File upload in ProSAFE Network Management System
- CVE-2024-6813 NETGEAR ProSAFE Network Management System getSortString SQL Injection Remote Code Execution Vulnerability
- CVE-2024-6814 NETGEAR ProSAFE Network Management System getFilterString SQL Injection Remote Code Execution Vulnerability
Sources
Also known as GHSA-j2mm-7qvr-jmm2.