AntiVir PersonalEdition Classic Bug: Some informations about the Bug I found in AntiVir PersonalEdition Classic from Avira.
Full Disclosure: AntiVir PersonalEdition Classic: Local Privilige Escalation
heise.de: Erweiterte Zugriffsrechte durch Avira AntiVir [Update]
Application: AntiVir PersonalEdition Classic
Site: http://www.free-av.de/
Version: 7 and maybe lower
OS: Windows XP, Windows 2000
Bugs: Local Privilige Escalation
Product:
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AntiVir PersonalEdition Classic Windows from Avira GmbH protects your computer from viruses, malware, unwanted programs and other dangers.
About:
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A few days ago I discovered a little 'Local Privilege Escalation' Bug in the current version of AntiVir PersonalEdition Classic.
Description:
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Part of AntiVir PersonalEdition Classic is a service called 'AntiVir PersonalEdition Classic Planer' which runs with SYSTEM rights. If you start the update process using the GUI, AntiVir will show you a status window. After finishing the process AntiVir offers you a report. Open the report using the button 'Report' and AntiVir will open the report in the well known application 'notepad.exe'. Well, since the update was initiated by the service 'AntiVir PersonalEdition Classic Planer', which runs with SYSTEM rights, notepad.exe inherits these rights now. Use 'notepad.exe' to *run* 'compmgmt.msc' for example and... Well, you know what might happen now.
History:
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2006-03-04: Found the Bug and mailed Vendor
2006-03-05: Response from vendor, checking the problem
2006-03-09: Response from vendor, fix is on the way.
ports
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SYS 64767