Vulnerability identifier: #VU23650
Vulnerability risk: Low
CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
NetBSD
Operating systems & Components /
Operating system
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
NetBSD: 8.1
External links
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2019-006.txt.asc
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.