Description
Barracuda Spam Firewall 3.1.10 and earlier does not restrict the domains that white-listed domains can send mail to, which allows members of white-listed domains to use Barracuda as an open mail relay for spam.
References
- 14243 third-party-advisory
- barracuda-open-relay(19283) vdb-entry
- 20050210 Barracuda Spam Firewall <= 3.1.10 acts as open relay for whitelisted senders. mailing-list