CVE-2007-4321
Summary
fail2ban 0.8 and earlier does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6302.
- MEDIUM
- NETWORK
- NONE
- PARTIAL
- PARTIAL
- PARTIAL
References
Advisory Timeline
- Published