VM Detection Via Browsers

Published
Credit
Risk
2015.10.08
Amit
Low
CWE
CVE
Local
Remote
N/A
N/A
No
Yes

Hi

In three browser families researched (Edge, Internet Explorer and Firefox - all on Windows 7 or above), it is possible to extract the frequency of the Windows performance counter, using standard HTML and Javascript. With the Windows performance counter frequency, it is possible to remotely detect some virtual machines and to coarse-grain fingerprint physical machines.

The full advisory is here:

http://www.securitygalore.com/site3/vmd1-advisory

A demo page for this advisory is here:

http://www.securitygalore.com/files/vmd1.html

A fix is available in Firefox 41:

https://www.mozilla.org/en-US/security/advisories/mfsa2015-114/

Finally, you may be interested in my page dedicated to web-based VM detection methods:

http://www.securitygalore.com/site3/web_based_vm_detection

Thanks,
-Amit
http://www.securitygalore.com/

References:

http://www.securitygalore.com/site3/web_based_vm_detection
https://www.mozilla.org/en-US/security/advisories/mfsa2015-114/
http://www.securitygalore.com/files/vmd1.html
http://www.securitygalore.com/site3/vmd1-advisory


See this note in RAW Version

 
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