Privilege escalation in Sun Nfs

CVE-1999-0084

Certain NFS servers allow users to use mknod to gain privileges by creating a writable kmem device and setting the UID to 0.

Vulnerability class: Privilege Escalation

EPSS: 0.004 (33.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Sun Nfs
N/a — versions n/a

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

Public proof-of-concept exploits

References

cve@mitre.org (vdb-entry, x_refsource_XF)

Frequently asked questions

What is CVE-1999-0084?: CVE-1999-0084 is a high-severity vulnerability in Sun Nfs, classified under Improper Privilege Management. CVSS score: 8.4/10. Published 1990-05-01.
How severe is CVE-1999-0084?: High severity. CVSS v3 base score is 8.4 out of 10.
Is CVE-1999-0084 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.