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Security researcher uncovers two Office XP flaws

April 2, 2002, 01:05 PM —  IDG News Service — 

Two new security flaws in Microsoft Corp.'s Office XP productivity suite could be combined to allow attackers to take over a system, according to independent security researcher Georgi Guninski.

Guninski sent an advisory about the issues to security e-mail lists and posted it on his Web site Monday.

The first vulnerability, which affects Outlook XP, would allow an attacker to embed "active" content in an e-mail, he wrote. Active content contains both an object and a script. The content embedded in the e-mail would then execute when the e-mail is forwarded or replied to, wrote Guninski, who has uncovered a number of vulnerabilities in Microsoft products in the past. The vulnerability could force a user to visit a Web page designated by the attacker, Guninski wrote.

The second security hole, which affects the spreadsheet component of Office XP, can be used in conjunction with the first vulnerability to place executable files in a user's start-up directory, which could lead to a takeover of the target machine, he wrote.

Guninski, who lives in Bulgaria, included sample code in his advisory to demonstrate how to exploit both vulnerabilities.

Guninski wrote that he notified Microsoft of the bugs on March 17, but that the company did not produce a patch in two weeks, triggering his advisory. In the past, Microsoft has criticized Guninski for releasing his vulnerability data too quickly, calling his actions "irresponsible."

Work-arounds for the vulnerability include disabling all "active" content in Internet Explorer (which is used by parts of Outlook) and fully deleting the spreadsheet component of Office XP. Guninski also wrote that "the solution is to get a real mail client and office applications."

» posted by abennett

IDG News Service

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Either way you look at it Microsoft Data Center management did not follow standards or best practices in this failure. In which case it makes me wonder more about the outsourcing of corporate data much less personal data.
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