Incorrect permissions in NetBSD kernfs
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | N/A |
| CWE-ID | CWE-276 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
NetBSD Operating systems & Components / Operating system |
| Vendor | NetBSD Foundation, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Incorrect default permissions
EUVDB-ID: #VU54876
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: N/A
CWE-ID:
CWE-276 - Incorrect Default Permissions
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions in kernfs. A local user with access to the system can read any file on the /kern volume.
Install updates from vendor's website.
Vulnerable software versionsNetBSD: 9.0 - 9.2
CPE2.3- cpe:2.3:o:netbsd_foundation:netbsd:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:netbsd_foundation:netbsd:9.1:*:*:*:*:*:*:*
- cpe:2.3:o:netbsd_foundation:netbsd:9.2:*:*:*:*:*:*:*
https://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2021-002.txt.asc
Q & A
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.
