Vulnerabilities > CVE-2001-1155 - Incorrect Authorization vulnerability in Freebsd 4.1.1/4.2/4.3
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 11 |