Microsoft is investigating reports of a new vulnerability in
PowerPoint
Experts at SophosLabs™, Sophos's global
network of virus, spyware and spam analysis centers, have reminded
computer users to be wary of opening unsolicited files as reports
circulate of a newly discovered vulnerability in Microsoft
PowerPoint. The unpatched flaw is believed to allow hackers to run
malicious code, such as a worm, on Windows and Mac computers.
Microsoft has published details of the issue in a security advisory
on its website. The vulnerability is believed to affect Microsoft
PowerPoint 2000, Microsoft PowerPoint 2002, Microsoft Office
PowerPoint 2003, Microsoft PowerPoint 2004 for Mac, and Microsoft
PowerPoint v. X for Mac.
"It's been a bad few weeks for Microsoft on the security front.
No sooner have they rushed to
deal with a zero day vulnerability in the way their products handle
Vector Markup Language than they discover an apparent problem with
PowerPoint files," said Graham Cluley, senior
technology consultant for Sophos. "Hackers are showing increasing
ingenuity in their attempts to break into innocent users'
computers, and are hunting for bugs in commonly-used programs to
exploit. PowerPoint is the standard business tool for
presentations, underlining that all computer users need to show
great caution when handling unsolicited email attachments."
In July, in a similar incident, Sophos reported
how Chinese hackers were exploiting a different zero day
vulnerability in Microsoft Powerpoint to install a keylogging
Trojan horse.
Sophos recommends that companies protect their email gateways
with a consolidated solution to defend
against viruses, spyware and spam, as well as apply an email policy
that filters unsolicited content at the gateway. Businesses should
also secure their desktop and servers with automatically updated
protection and firewalls.
More than 100 million users in 150 countries rely on Sophos as the best protection against complex threats and data loss. Sophos is committed to providing security and data protection solutions that are simple to manage, deploy and use and that deliver the industry's lowest total cost of ownership. Sophos offers award-winning encryption, endpoint security, web, email, and network access control solutions backed by SophosLabs - a global network of threat intelligence centers. With more than two decades of experience, Sophos is regarded as a leader in security and data protection by top analyst firms and has received many industry awards.
Sophos is headquartered in Boston, US and Oxford, UK. More information is available at www.sophos.com.