What is CVE-2001-1155?

CVE-2001-1155 is a critical-severity vulnerability in Freebsd, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2001-08-23.

How severe is CVE-2001-1155?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Freebsd

CVE-2001-1155

TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which could allow remote attackers to bypass intended access restrictions via DNS spo…

Vulnerability class: Broken Access Control

EPSS: 0.020 (78.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Freebsd
N/a — versions n/a

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@mitre.org (x_refsource_OSVDB, vdb-entry, Broken Link)

Frequently asked questions

What is CVE-2001-1155?: CVE-2001-1155 is a critical-severity vulnerability in Freebsd, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2001-08-23.
How severe is CVE-2001-1155?: Critical severity. CVSS v3 base score is 9.8 out of 10.