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The simple way to stop serious Microsoft software flaws? Take away 'admin' rights

Running users as 'standard' mitigates risk, Avecto finds

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Running Windows users with ‘standard’ rather than ‘administrator’ rights would have removed over 90 percent of the risk posed by critical vulnerabilities reported in Microsoft products last year, an analysis by privilege management firm Avecto has found.

The firm first looked at 333 vulnerabilities reported by Microsoft in 2013 across all products in its monthly Security bulletins, finding that 60 percent would have been mitigated by removing admin rights. Studying only the 147 rated as the most serious, the mitigation level reached an astonishing 92 percent.

Breaking down the numbers by products, Avecto found that 96 percent of critical flaws were mitigated by removing admin rights on all versions of Windows up to version 8; for Internet Explorer, it was 100 percent, for Office it was 91 percent while even on Windows Server 2003, 2010 and 2012 it was 96 percent. More than half of the vulnerabilities involved Remote Code Execution.

The methodology used to calculate these percentages was for the most part fairly simple; if Microsoft stated in its bulletin that users with standard rights would be “less impacted” than those with admin rights, Avecto counted that fact. Some flaws were counted twice (and therefore mitigated twice) if the same vulnerability occurred on multiple products.

There is a debate about what the bureaucratic phrase "less impacted" actually means in this context but one has to assume that its mention suggests that the issue required admin-level rights to have posed a threat.

On that basis these numbers argue nicely for Avecto, which sells a software product, Privilege Guard, designed to manage user rights based on the security concept of least privilege.

“It’s astounding just how many vulnerabilities can be overcome by the removal of admin rights,” said co-founder and executive vice president, Paul Kenyon.

“The dangers of admin rights have been well documented for some time, but what’s more concerning is the number of enterprises we talk to that are still not fully aware of how many admin users they have. Without clear visibility and control, they are facing an unknown and unquantified security threat.”

The fascinating issue is how many unknown and zero day attacks also depend on abusing admin rights. Scaling back admin rights was a simple way to reduce an organisation’s general vulnerability, even to unpatched flaws, argued Kenyon.

It is also conceivable that privilege management technology would have made high-profile attacks such as the recent one on Target if not impossible then much harder, by reducing the potential for the abuse of partner access, believed to have been at the heart of the breach.  



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Comments

sorgfelt said: I do web programming Visual Studio will not even load a web project unless I have Administrator access so that it can access the IIS metabase

Jonathan Briggs said: UnixLinux developers have been developing for decades without admin rights Windows developers should be doing the same thingSure you need admin for installing and testing the package but everything up to that point should be doable as an ordinary user You should never be running Visual Studio or Eclipse as adminAnd actually almost all install and test is done on virtual machines these days so admin on the development system isnt really necessary even for that

nickels said: I think it would be much better to take away the keyboard and keep the computer unplugged See I hope you get the idea Security by destroy any capability is not much of a win As developers admin rights are not optional For your ordinary spreadsheet user okay

Jim Wilson said: Jonathan is absolutely rightI endured conflicts with so-called power users since Vista started the UAC trend I went toe-to-toe with so many software vendors who literally cared NOTHING about security trying to get me to dump the UAC and enable permissions in the system32 directory all because they were TOO LAZY to write the program CORRECTLYI even took crap within my own department and was finally pushed out in favor of a younger smarter people Imagine my surprise when I heard from friends how they suffered a massive data loss about 3 months later after they gave everyone admin rightsI felt so bad that I couldnt stop laughing for a week

TerryTurtle said: And thats leaving UAC on turned all the way to max and logging in as a standard user elevating when required

Craig said: UAC may have been the same in basic concept as the 30 year old concept of sudo in BSD however they arent an identical feature UAC virtualized folders and such It broke a lot of software This is why many support websites and vendors recommended that users turn UAC off I dont think Linux users made a big fuss over it If there was some sort of generalized laugh maybe it was because of all those vendors and support websites making UAC out to be such a horrible implementation even if UAC wasnt so bad



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