May 18, 2004 5:43 PM PDT

Mac OS X vulnerable to one-two combo attack

Apple Computer got hit by a double whammy this week when a security researcher publicized a pair of flaws in Mac OS X that when used together could let attackers place a malicious program on a Mac and then run the file.

The flaws could be used to create a virus that spreads through a Web link sent via e-mail messages. An attacker would have to also create a Web site with special programming.


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The discoverer, who uses the name "lixlpixel," claims to have notified Apple in late February and said the company never responded. News of the vulnerabilities had started appearing on security mailing lists, prompting the flaw finder to post details of the weakness to the Web.

"Since these 'exploits' are on the rise and it's so easy to protect yourself--here you go," lixlpixel's posting said.

Apple refused to comment on the vulnerability, except to publish a release saying that such reports are taken "very seriously at Apple and we are actively investigating this potential security issue."

Apple has twice been criticized for its downplaying of security issues and its lack of response to the concerns of the security industry.

Security information service Secunia rated the issue "extremely critical," on Tuesday, because online discussions have pointed out many different ways to exploit the flaws. Secunia recommended that Mac users avoid visiting untrusted Web sites and said Mac administrators and others avoid surfing the Internet while signed on to their networks as privileged users.

Secunia verified the flaws in Apple's operating system by viewing malicious code using Internet Explorer for the Mac and Safari.

More about this issue can be found in the advisories section of Secunia's Web site.

See more CNET content tagged:
Apple Computer, Apple Macintosh, attacker, flaw, Apple Mac OS

Add a Comment (Log in or register) 3 comments
Give me a break
by May 19, 2004 8:51 AM PDT
OSX isn't perfect, nothing is, but its a heck of a lot better
than windows. How many times have we seen reports of
Windows exploits as compared to Mac? keep on counting.
Reply to this comment
How to fix
by iKenny May 19, 2004 12:50 PM PDT
To easily fix the problem, go to http://isophonic.net and
download the program "Don't Go There GURLfriend." Then click
the Patch button. It will alter the offending line in Help Viewer
and secure your Mac.
Reply to this comment
Another fix - recommended by macosxhints
by bathgate May 19, 2004 4:51 PM PDT
1.Turn off "Open 'safe' files after downloading" in the Safari
general preferences.
2.Download Misfox or MoreInternet (please use this
MoreInternet mirror), or some other application which allows
you to set your internet helper preferences.
3.Set the protocol preference for 'help' to Chess or TextEdit, or
something other than the Help application.
Reply to this comment
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