fail2ban 0.7.4 and previous versions does not properly parse sshd log files, which allows remote malicious users 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 login name containing certain strings with an IP address.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
fail2ban fail2ban |
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