DenyHosts 2.5 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, which is not properly handled by a regular expression.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
denyhosts denyhosts 2.5 |
Vulmon