Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Web log



At 8:52 PM -0700 9/23/04, Jonathan Schwartz wrote:
At 1:30 PM +1000 9/24/04, Evan Smith wrote:
Why am i getting this in the web access log?

90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x9

This is an attempt to cause a buffer overflow, an ancient technique that hasn't worked for a long time.

Actually this typically never really worked for Apache (I think there were a couple of buffer overflows but required some very specific configuration) it was to target buffer overflows in IIS. It typically still does on Windows IIS servers since they are very vulnerable to buffer overflows. In fact each new IIS work is just normally just a subtle variation of this same technique. Buffer overflow attacks also affect many other Windows servers too, Windows does poor bounds checking.


So yes you can probably ignore this on OS X, but it could be a new sort of attack or an attack that still affects some other server. Likewise there could come a day where a new sort of buffer overflow is found in some strange Apache configurations, but the project has tried to engineer this out, as opposed to MSFT which just patches out each worm.
--


-dhan

------------------------------------------------------------------------
Dan Shoop                                              email@hidden
Consulting Internet Architect                              email@hidden
AIM: iWiring                                     http://www.iwiring.net/
Skype: danshoop                                   http://www.ustsvs.com/

pgp key fingerprint: FAC0 9434 B5A5 24A8 D0AF  12B1 7840 3BE7 3736 DE0B

iWiring designs and supports Internet systems and networks based on
Mac OS X, unix, and Open Source application technologies and offers
24x7, guaranteed support to registered clients, at affordable rates.
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Macos-x-server mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/macos-x-server/email@hidden

This email sent to email@hidden
References: 
 >Web log (From: Evan Smith <email@hidden>)
 >Re: Web log (From: Jonathan Schwartz <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.