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new: added new dns.spoof.all option, default to false.

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This commit is contained in:
evilsocket 2018-01-25 14:12:42 +01:00
commit 0ca87b8084
1 changed files with 11 additions and 1 deletions
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12
modules/dns_spoof.go
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@ -21,12 +21,14 @@ type DNSSpoofer struct {
Handle *pcap.Handle
Domains []string
Address net.IP
All bool
}
func NewDNSSpoofer(s *session.Session) *DNSSpoofer {
spoof := &DNSSpoofer{
SessionModule: session.NewSessionModule("dns.spoof", s),
Handle: nil,
All: false,
}
spoof.AddParam(session.NewStringParameter("dns.spoof.domains",
@ -39,6 +41,10 @@ func NewDNSSpoofer(s *session.Session) *DNSSpoofer {
session.IPv4Validator,
"IP address to map the domains to."))
spoof.AddParam(session.NewBoolParameter("dns.spoof.all",
"false",
"If true the module will reply to every DNS request, otherwise it will only reply to the one targeting the local pc."))
spoof.AddHandler(session.NewModuleHandler("dns.spoof on", "",
"Start the DNS spoofer in the background.",
func(args []string) error {
@ -79,6 +85,10 @@ func (s *DNSSpoofer) Configure() error {
return err
}
if err, s.All = s.BoolParam("dns.spoof.all"); err != nil {
return err
}
if err, s.Domains = s.ListParam("dns.spoof.domains"); err != nil {
return err
}
@ -223,7 +233,7 @@ func (s *DNSSpoofer) onPacket(pkt gopacket.Packet) {
udp := pkt.Layer(layers.LayerTypeUDP).(*layers.UDP)
// DNS request for us?
if bytes.Compare(eth.DstMAC, s.Session.Interface.HW) == 0 {
if s.All == true || bytes.Compare(eth.DstMAC, s.Session.Interface.HW) == 0 {
dns, parsed := pkt.Layer(layers.LayerTypeDNS).(*layers.DNS)
if parsed == true && dns.OpCode == layers.DNSOpCodeQuery && len(dns.Questions) > 0 && len(dns.Answers) == 0 {
for _, q := range dns.Questions {