From 9eac41024a18046ecf1470161afb2fda00926bc4 Mon Sep 17 00:00:00 2001
From: c0decave <gitlab@localhost>
Date: Wed, 21 Apr 2021 16:42:57 +0200
Subject: [PATCH] ssl fingerprinter

---
 fingerprint.py | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100755 fingerprint.py

diff --git a/fingerprint.py b/fingerprint.py
new file mode 100755
index 0000000..d00ad22
--- /dev/null
+++ b/fingerprint.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python
+# You have exactly *one* job: Get me the fingerprint of the remote SSL layer.
+
+#cert_pem = ssl.get_server_certificate(addr)
+
+import os
+import sys
+import ssl
+import base64
+import socket
+import argparse
+from M2Crypto import X509
+
+__tool_name__ = 'fingerprint'
+__tool_author__ = 'dash'
+__tool_version__ = 'v0.2'
+__tool_desc__ = 'get fingerprint from remote ssl layer'
+
+
+def connect(host, port):
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    s.connect((host, port))
+
+    return s
+
+
+def wrap_it(sock):
+    ssock = ssl.wrap_socket(sock)
+    return ssock
+
+
+def get_pem_cert(ssock):
+
+    cert = ssock.getpeercert(binary_form=True)
+    return cert
+
+
+def run(args):
+
+    myfp = ['md5', 'sha1', 'sha256', 'sha512']
+    host = args.host
+    port = args.port
+
+    sock = connect(host, port)
+    ssock = wrap_it(sock)
+    pem_cert = get_pem_cert(ssock)
+    x509 = X509.load_cert_string(pem_cert, X509.FORMAT_DER)
+
+    print('Results')
+    print('-'*7)
+    for entry in myfp:
+        fp = x509.get_fingerprint(entry)
+        print(entry + ':' + fp)
+
+
+def main():
+
+    parser_desc = '{0} by {1} version {2}'.format(
+        __tool_name__, __tool_author__, __tool_version__)
+
+    prog_desc = parser_desc
+    parser = argparse.ArgumentParser(
+        prog=prog_desc, description=__tool_desc__)
+
+    parser.add_argument("-l", "--host", action="store", default='127.0.0.1',
+                        required=False, help='host to get ssl cert from, default: 127.0.0.1', dest='host')
+    parser.add_argument("-p", "--port", action="store", required=False, default=443, type=int,
+                        help='port (default:{0})'.format(443), dest='port')
+    args = parser.parse_args()
+    run(args)
+
+
+if __name__ == "__main__":
+    main()