#VU23650 Permissions, Privileges, and Access Controls in NetBSD

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Main Vulnerability Database Vulnerabilities #VU23650

#VU23650 Permissions, Privileges, and Access Controls in NetBSD

Published: December 18, 2019


Vulnerability identifier: #VU23650
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
NetBSD
Software vendor:
NetBSD Foundation, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to presence of filemon in default installation of NetBSD. The filemon module is experimental and is not recommended for running on production systems. However it gets automatically auto-loaded when /dev/fliemon is opened, and get accessible to every user on the system.

A local user can gain read/write access to the filemone module and perform a denial of service attack or gain elevated privileges on the system.


Remediation

Install updates from vendor's website.

External links