Monthly Archives: July 2009

Safari 4.02 Security Update

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Posted by hard-mac on July 8, 2009 – 10:49 pm
Filed under Apple Updates, Hardening
Tagged as , ,

Apple updated Safari to 4.02 fixing two critical vulnerabilities.

About the security content of Safari 4.0.2 – http://support.apple.com/kb/HT3666

* CVE-2009-1724: An issue in WebKit’s handling of the parent and top objects may result in a cross-site scripting attack when visiting a maliciously crafted website. This update addresses the issue through improved handling of parent and top objects.
* CVE-2009-1725: A memory corruption issue exists in WebKit’s handling of numeric character references. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. This update addresses the issue through improved handling of numeric character references.

Apple Safari 4.x JavaScript Reload Denial of Service

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Posted by hard-mac on July 2, 2009 – 8:44 pm
Filed under Exploits, News, Vulnerabilities
Tagged as , , , , ,

Apple Safari 4.x JavaScript Reload Denial of Service
___________________________________________________________________________________

Author : Marcell ‘SkyOut’ Dietl, Achim Hoffmann
Email : mail [at] marcell-dietl [dot] de
Vendor : http://www.apple.com/
Product : http://www.apple.com/safari/
Found : 12.06.2009
Released : 01.07.2009

Tested on:
– Safari 4.0 at Windows XP SP3
– Safari 4.0.1 at Mac OS X 10.5.7
___________________________________________________________________________________
STEPS TO REPRODUCE

1) Create a HTML file with the following content:

+———-
|
|
|
|
|
|
+———-

2) Create an empty file called “empty.js” in the same directory.

3) Put both files into the WWW directory of your server.

4) Access the HTML file with your browser.
– A popup will appear: Close it.
– A popup will appear: Close it.
– Crash.

5) On Windows:

+———-
| AppName: safari.exe AppVer: 4.530.17.0 ModName: webkit.dll
| ModVer: 4.530.17.0 Offset: 00305f55
+———-

5) On Mac OS X:

+———-
| Process: Safari [298]
| Path: /Applications/Safari.app/Contents/MacOS/Safari
| Identifier: com.apple.Safari
| Version: 4.0.1 (5530.18)
| Build Info: WebBrowser-55301800~1
| Code Type: X86 (Native)
| Parent Process: launchd [163]
|
| Date/Time: 2009-07-01 00:58:48.144 +0200
| OS Version: Mac OS X 10.5.7 (9J61)
| Report Version: 6
|
| Exception Type: EXC_BAD_ACCESS (SIGBUS)
| Exception Codes: KERN_PROTECTION_FAILURE at 0×0000000000000002
|
| Thread 0 crashed with X86 Thread State (32-bit):
| eax: 0×00000002 ebx: 0x900bac11 ecx: 0x00625eec edx: 0×00000000
| edi: 0x00625ec8 esi: 0×00000002 ebp: 0xbfffe778 esp: 0xbfffe5e0
| ss: 0x0000001f efl: 0×00010217 eip: 0x900bac74 cs: 0×00000017
| ds: 0x0000001f es: 0x0000001f fs: 0×00000000 gs: 0×00000037
| cr2: 0×00000002
+———-
___________________________________________________________________________________
Advisory : http://marcell-dietl.de/index/adv_safari_4_x_js_reload_dos.php

Live Demo : http://marcell-dietl.de/index/demo_safari_4_x_js_reload_dos.html

Apple has been informed about the bug, but did not show any interest.
___________________________________________________________________________________
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