NGSSoftware Insight Security Research Advisory Name: Norton Internet Security Remote Command Execution Systems Affected: XP (not confirmed on 2000); NIS & NIS Pro 2004, not confirmed on previous versions. Severity: High Vendor URL: http://www.symantec.com Author: Mark Litchfield [ mark@private ] Date Vendor Notified: 4th March 2004 Date of Public Advisory: 19th March 2004 Advisory number: #NISR19042004b Advisory URL: http://www.ngssoftware.com/advisories/nisrce.txt Description *********** Symantec's Norton Internet Security 2004 Professional protects you and your business from online threats. It eliminates viruses automatically, blocks hackers, safeguards your personal information, fights spam, increases online productivity, recovers lost or damaged files, and thoroughly deletes confidential data you no longer need. Details ******* Installed with Norton Internet Security and Professional is an ActiveX component that is marked safe for scripting, namely WrapNISUM Class (c:\program files\Norton Internet Security Professional\WrapUM.dll). Using the LaunchURL method an attacker has the ability to force the browser to run arbitrary executables on the target. In a real world attack, this would more than likely take the form of a UNC path. It's important to note here that on those windows operating systems that support the WEBDAV redirector file system if the UNC path cannot be reached over TCP port 139 or 445 it will switch to TCP Port 80 (http). Needless to say this aspect will allow attacks to go through corporate firewalls. The attack can be achieved either by encouraging the 'victim' to visit a malicious web page or placing a script within the content of an (html) email. Fix Information *************** Shipped with all Symantec's products is the LiveUpdate feature. Open Internet Security / Professional and select the LiveUpdate feature which will retrieve the lastest patch. It's worth mentioning Symantec's quick response to this issue in ensuring their clients remain protected. About NGSSoftware ***************** NGSSoftware design, research and develop intelligent, advanced application security assessment scanners. Based in the United Kingdom, NGSSoftware have offices in the South of London and the East Coast of Scotland. NGSSoftware's sister company NGSConsulting, offers best of breed security consulting services, specialising in application, host and network security assessments. http://www.ngssoftware.com/ Telephone +44 208 401 0070 Fax +44 208 401 0076 enquiries@private
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