Slashdot Mirror


New Windows Vulnerability in Help System

wesleyt writes "CERT announced today a significant Microsoft Windows vulnerability related to IE and its handling of the Windows help subsystem. There are currently no patches available and no virus definitions for the major scanners. As well, exploits have been reported in the wild. Because the vulnerability is in the help subsystem, even users who avoid Outlook and IE are vulnerable, since IE is the default handler for help files. It seems that this is going to be an ugly one."

15 of 576 comments (clear)

  1. Re:Does that matter if we don't have IE's exe file by pe1chl · · Score: 4, Interesting

    IE's exe file is not very relevant, as it is only a loader for the DLLs that implement the actual functionality.

    How else could it be so small?

    To really get rid of IE you need to remove the DLL files that it uses, and you will break many other programs in the process. Because they all closely link to eachother.

  2. Afraid by InternationalCow · · Score: 5, Interesting

    I don't know about the rest of you, but things like these are actually scaring me out of running Windows. Apart from my powerbooks (no problems there) I have one PC laptop on which I run WinXP and Linux and I like to use Windows for its ACPI support, but I'm now constantly afraid that some as yet undescribed security hole will allow someone to screw up my computer/home network. Brrrr. No Windows any longer, I'm sick and tired of being afraid when using my computer.

    --
    ----- One learns to itch where one can scratch.
  3. Re:start the stopwatch... by exmsfty · · Score: 5, Interesting

    Well, the interesting thing to me is I was a contract tester on the HTMLHELP team in 1999...and I filed a bug report for this very exploit. So by my stopwatch we are at 5 years and counting. FWIW, I used this exploit to nuke my boss's computer via the "Goodtimes" virus...yea, it was a hoax, but with this exploit I could run "rd /s/q \winnt" from the Preview Pane of Outlook :) If you care then write ShaneMc@microsoft.com and ask him why it wasn't fixed 5 years ago.

  4. Mitigation? by Henk+Poley · · Score: 3, Interesting

    Are you sure?

  5. Re:Privilege level by Halfbaked+Plan · · Score: 3, Interesting

    To extend your analogy to fit better, consider a world in which many doors, windows, cabinets, etc. are designed in such a way that it's impossible to install a key lock. Others are designed so that a keylock can be installed, but there's only one supply anywhere in the world for key blanks for that particular lock. So you can't lock certain places at all, because you only have one key, and there are five of you who need access to that cabinet or room.

    --
    resigned
  6. ie rants by bmac · · Score: 4, Interesting

    I use a "custom level" for my internet zone. I basically turn off *everything*. I don't need java, and "active scripting" should be re-worded to say "give web pages access to God-knows-what?".

    Besides, I really despise the "AppletTransition Sensor" that ESPN and other sites use. Screw `em. Just give me the dang HTML and, please, IE, just render it for me. No code, no scripts, no popups, no crap.

    Websites that require JavaScript piss me off. The stupid Washington Post can't even render a page without JavaScript. What a terd.

    Now, if only I could get IE to stop displaying the "Your browser doesn't allow ActiveX controls" message that pops up on pages where the designer used some crap control. I've made ActiveX controls and I *know* they can do anything they want on my system. Arg.

    And wtf is with "install desktop items"? This is a *web* *browser*, not the control panel, for crying out loud.

    And, last but not least, when I disable all this crap and then hit apply, it gives me a confirm warning message, but when I (because I need to use JavaScript on some crappy page) restore the default "cheap-whore-mode" settings, it doesn't say a word! Nice emphasis, Microsoft.

    Yeah, I know, use a different browser (or OS), but we all know Windows is *designed* to not interoperate well with those things, right? Sometimes, it wastes time to try to fight inertia.

    Anyhow, my feeling is that the desktop situation on Linux and BSD won't be solved until X is ditched completely. Just give me the dang screen buffer(s) and some basic routines and I'll draw my own shtuff. X is a 25-year-old terd, designed for machines with, like, 4k of memory (warning: hyperbole). Just give me font, line, point, ellipse, bitblt and friggin window data structures -- straight to the video card. And access to the video card reg's would be nice too.

    End of Rant, enjoy your day.

    Peace & Blessings,
    bmac

  7. Mod Parent UP! by Chordonblue · · Score: 5, Interesting

    Where's my friggin points when I need them?

    Look, this is absolutely true. There is still plenty of software out there that breaks under W2K/WXP when not run as a local administrator.

    And forget 'looser' environments. I run a network at a private school. Care to take a guess how much educational software cares about following the rules properly? Grrr!!!

    --
    "...Well, there's egg and bacon; egg sausage and bacon; egg and spam; egg bacon and spam; egg bacon sausage and spam..."
  8. Re:MS by Anonymous Coward · · Score: 4, Interesting

    As if they needed another method.

    try:
    <img src=mailto:user@host?Subject=Something&Body=Fun>
    on IE...

  9. Re:Privilege level by TheLink · · Score: 4, Interesting

    Login as your usual restricted user for your normal stuff (wordprocessing etc), e.g. joe

    Right click on the IE/browser shortcut, select run as different user e.g. www_joe.

    Then give www_joe permissions to joe's browser directories, or point the browser files to different folders in the registry/config files.

    Of course this doesn't protect against shatter attacks etc.

    So run IE in a VMware virtual machine and rollback after each session (copy out the data you want before that). VMware Workstation is now USD189 prev was USD299 or some high price.

    --
  10. Re:Use the RUNAS service by plugger · · Score: 3, Interesting

    It doesn't always work though. If you are accessing files through a mapped network drive letter, a program run as administrator won't see the virtual drive.

    It doesn't work as well as 'su -c xxx', I wish it did.

  11. Re:Privilege level by ymgve · · Score: 5, Interesting

    Games need Administrator privileges because the copy protection systems use driver tricks that are only available to administrators. Yet another reason why copy protection should be abolished.

  12. Re:start the stopwatch... by value_added · · Score: 4, Interesting
    I'm not suprised. I'm reasonably familiar with the format as I've authored numerous CHM files and spent even more time re-compiling others (removing those HTMLHelp-specific features that MS and anyone following their lead insists on adding that I consider both nutty and inappropriate). IIRC, development stopped on v1.x a long time ago, and the much heralded new help system has some real problems of its own. A number of existing bugs for v1.x have been documented for some time, like those referred to here. Others, well, for years no one at MS has shown any interest in fixing anything unless it involves an embarrassing exploit.

    It's too bad, really. I'm not at all impressed with what little MS has done with the format (it still strikes me as afterthought), but compiled HTML can be a blessing. Anyone with tens of thousands of HTML docs on their drive (a handful of O'Reilly books?), can appreciate the simplicity of a single file.

  13. Re:Windows has problems... by HeelToe · · Score: 4, Interesting


    Linux is *not* user friendly, and until it is linux will stay with >1% marketshare.

    Take installation. Linux zealots are now saying "oh installing is so easy, just do apt-get install package or emerge package": Yes, because typing in "apt-get" or "emerge" makes so much more sense to new users than double-clicking an icon that says "setup".

    I hate to break it to you, but anyone with the attitude you display is the problem, not a lack of user friendliness.

    I have used linux since .95pre2 when it was bootstrap your own days. I've used 386bsd/FreeBSD from a similar point in time (since linux had no real networking layer at that point I switched permanently until the past 2 years where I'm again using both for different reasons).

    I just did a fedora core 1 install. What a joke! Less questions, less knowledge required than a Windows install.

    Even once you get it up and running it is smooth and easy to find what you want, vs. a standard kde install on another distro leaving you 40 choices for each type of functionality you'd like to use.

    Here's the problem - any installation is somewhat of a barrier because most people do not install windows themselves - it comes on their computers. The steps being taken by Sun, Lindo(w)s, SuSe, Xandros, and others to get their distros defaulted on budget machines will get the familiarity and ease-of-use out there to the masses.


    Linux zealots are far too forgiving when judging the difficultly of Linux configuration issues and far too harsh when judging the difficulty of Windows configuration issues. Example comments:

    You're right. A friend is helping me bootstrap debian on a running machine I have nothing but net access to. Obviously a little tricky, but once you understand the basics, it's really reasonably easy. However, most Linux "power-users" would expect everyone to be able to do it.

    Your examples with Quake show just why we need a common push for progress in this area, and the individual camps are making great strides, but there's needs to be a more unified effort to get better traction.

  14. Re:MS by scrytch · · Score: 3, Interesting



    It starts up mail! I can't believe it, it starts up mail! What an insecure piece of shit, I can't believe it! On firefox, when I view it ... it starts up mail!

    Oh wait, you wanted me to do it in IE? Oh yeah, that does it too.

    --
    I've finally had it: until slashdot gets article moderation, I am not coming back.
  15. Very curious... by kikta · · Score: 3, Interesting

    IE 6.0 and Firefox 0.8 do indeed open up a compose email window. Mozilla 1.6, OTOH, just sits there with a broken picture icon.

    I'm not sure which is more interesting - that Firefox allows it such a boneheaded thing or that Firefox allows it when Mozilla does not. Aren't both using the same version of Gecko (I'm assuming that this is a function that Gecko would handle)?