From 87176933ae16715317926bfcd91994308a448361 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=98=A8=EC=8B=A4=20=EC=86=8D=20=EC=84=A0=EC=9D=B8?=
 =?UTF-8?q?=EC=9E=A5?= <24468970+happylie@users.noreply.github.com>
Date: Thu, 8 Sep 2022 17:58:21 +0900
Subject: [PATCH] Create burp_csid.py

---
 burp_csid.py | 150 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 burp_csid.py

diff --git a/burp_csid.py b/burp_csid.py
new file mode 100644
index 0000000..fa98ed6
--- /dev/null
+++ b/burp_csid.py
@@ -0,0 +1,150 @@
+# -*- coding: utf-8 -*-
+import math
+from burp import ITab
+from burp import IBurpExtender
+from java.awt import BorderLayout
+from java.awt import FlowLayout
+from java.awt import Font
+from java.awt import Dimension
+from java.awt import Component
+from javax.swing import JTextArea
+from javax.swing import Box
+from javax.swing import JPanel
+from javax.swing import BoxLayout
+from javax.swing import JButton
+from javax.swing import JTextField
+from javax.swing import JLabel
+from javax.swing import SwingConstants
+from javax.swing.border import EmptyBorder
+
+
+class BurpExtender(IBurpExtender, ITab):
+
+    def registerExtenderCallbacks(self, callbacks):
+        print('Loading...')
+        self.helpers = callbacks.getHelpers()
+        self.callbacks = callbacks
+        self.callbacks.setExtensionName('CSId Calc')
+        self.callbacks.addSuiteTab(self)
+        print('CSId Calc Extension Loaded!!!')
+
+    def getTabCaption(self):
+        return "CSId Calc"
+
+    def getUiComponent(self):
+        self.main_panel = JPanel(BorderLayout(5, 5))
+        self.main_panel.setBorder(EmptyBorder(20, 20, 20, 20))
+
+        self.action_panel = JPanel(FlowLayout(FlowLayout.LEADING, 10, 10))
+        self.sid_label = JLabel('Session ID : ', SwingConstants.LEFT)
+        self.sid_label.setFont(Font('Monaco', Font.BOLD, 14))
+        self.action_panel.add(self.sid_label, BorderLayout.LINE_START)
+        self.sid_input = JTextField('', 50)
+        self.action_panel.add(self.sid_input)
+        self.calc_button = JButton('Calc', actionPerformed=self.set_result)
+        self.action_panel.add(self.calc_button)
+        self.clear_button = JButton('Clear', actionPerformed=self.set_clear_text)
+        self.action_panel.add(self.clear_button)
+        self.main_panel.add(self.action_panel, BorderLayout.PAGE_START)
+
+        self.result_panel = JPanel(FlowLayout(FlowLayout.LEADING, 10, 10))
+        self.result_panel.layout = BoxLayout(self.result_panel, BoxLayout.PAGE_AXIS)
+        self.result_panel.add(Box.createRigidArea(Dimension(0, 10)))
+        self.result_text = JTextArea()
+        self.result_text.setEditable(False)
+        self.result_text.setAlignmentX(Component.LEFT_ALIGNMENT)
+        self.result_panel.add(self.result_text, BorderLayout.CENTER)
+        self.main_panel.add(self.result_panel)
+
+        return self.main_panel
+
+    def set_clear_text(self, event):
+        self.sid_input.setText('')
+        self.result_text.setText('')
+
+    def set_result(self, event):
+        sid = self.sid_input.getText()
+        if sid:
+            ce = CheckEntropy(sid)
+            self.result_text.append(ce.get_check())
+            self.sid_input.setText('')
+        else:
+            ret = """
+            [+] Result : 
+            Not Input Session ID Value
+            
+            """
+            self.result_text.append(ret)
+
+
+class CheckCharacters:
+    """
+    # Lower Case : 26
+    # Upper Case : 26
+    # Lower & Upper Case : 52
+    # Arabic numerals : 10
+    # Lower Case & Arabic numerals : 36
+    # Upper Case & Arabic numerals : 36
+    # Lower & Upper Case & Arabic numerals : 62
+    """
+
+    def __init__(self, sid):
+        self.alphabet = 'abcdefghijklmnopqrstuvwxyz'
+        self.arabic_numerals = '0123456789'
+        self.sid = sid
+
+    def __get_lowercase(self):
+        for c in self.sid:
+            if c in self.alphabet:
+                return 26
+        return 0
+
+    def __get_uppercase(self):
+        for c in self.sid:
+            if c in self.alphabet.upper():
+                return 26
+        return 0
+
+    def __get_numer(self):
+        for c in self.sid:
+            if c in self.arabic_numerals:
+                return 10
+        return 0
+
+    def str_length(self):
+        lc = self.__get_lowercase()
+        up = self.__get_uppercase()
+        n = self.__get_numer()
+        return lc+up+n
+
+
+class CheckEntropy:
+    def __init__(self, session_id):
+        self.sid = session_id.strip()
+        self.cc = CheckCharacters(self.sid)
+
+    def __get_check_entropy(self):
+        sid_char_len = len(self.sid)
+        sid_len = self.cc.str_length()
+        sid_strength = round((math.log(sid_len ** sid_char_len) / math.log(2)), 1)
+        sid_result = 'Good'
+        if int(sid_strength) < 128:
+            sid_result = 'Vulnerable(At least 128 Bits)'
+        return sid_char_len, sid_len, sid_strength, sid_result
+
+    def get_check(self):
+        try:
+            data = self.__get_check_entropy()
+            ret = """
+            [+] Result : 
+            ### Session ID Check Entropy ###
+            + Session ID : {sid}
+            + String Length : {sid_len}
+            + Characters : {sid_char_len} Type
+            + Strength : {sid_strength} Bits
+            + Result : {sid_result}
+            
+            """.format(sid=self.sid, sid_len=data[0], sid_char_len=data[1], sid_strength=data[2], sid_result=data[3])
+            return ret
+        except Exception as err:
+            print("Check Error:: {err}".format(err=err))