[Snort-users] ftp .rules
eric at ...15503...
Sat Oct 27 12:21:23 EDT 2012
On Oct 27, 2012 12:08 PM, "Jeremy Hoel" <jthoel at ...11827...> wrote:
> Please send these questions to the list. There are smart people on there
that can normally better explain the rules better then I can.
> From what I can tell, its traffic coming from an external_net ip to a
home_net one in on tcp port 21 and the packet contain MDTM around 100 bytes
> If you look at the cve it will explain what software is vulnerable and if
you don't run that software then you can disable this rule.
Looks like this rule tests for traffic that can take advantage of a
vulnerability in a handul of Serv U FTP versions from back in 2004:
As Jeremy said if you know you're not running an 8 year old version of Serv
U FTP on your network it's likely safe to disable this rule
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