CVEvulnerability

CVE-2007-4322

6.8 MEDIUM Published 2007-08-14 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2007-08-14
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P

Description

BlockHosts before 2.0.4 does not properly parse (1) sshd and (2) vsftpd log files, which allows remote attackers to add arbitrary deny entries to the /etc/hosts.allow file and cause a denial of service by adding arbitrary IP addresses to a daemon log file, as demonstrated by connecting through ssh with a client protocol version identification containing an IP address string, or connecting through ftp with a username containing an IP address string, different vectors than CVE-2007-2765.

Affected configurations

• ac zoom blockhosts 2.0.4

References