CVE-2001-1155
Last modified
CVE-2001-1155 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 spoofing.. EPSS estimates a 2.03% chance of exploitation in the next 30 days.
Description
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 spoofing.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | >= 4.1.1, <= 4.3 |
References
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:56.tcp_wrappers.ascBroken Link, Patch, Vendor Advisory
- http://www.osvdb.org/5454Broken Link
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:56.tcp_wrappers.ascBroken Link, Patch, Vendor Advisory
- http://www.osvdb.org/5454Broken Link
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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