module
Internet Explorer Iframe Sandbox File Name Disclosure Vulnerability
Disclosed | Created |
---|---|
2016-08-09 | 2018-05-30 |
Disclosed
2016-08-09
Created
2018-05-30
Description
It was found that Internet Explorer allows the disclosure of local file names.
This issue exists due to the fact that Internet Explorer behaves different for
file:// URLs pointing to existing and non-existent files. When used in
combination with HTML5 sandbox iframes it is possible to use this behavior to
find out if a local file exists. This technique only works on Internet Explorer
10 & 11 since these support the HTML5 sandbox. Also it is not possible to do
this from a regular website as file:// URLs are blocked all together. The attack
must be performed locally (works with Internet zone Mark of the Web) or from a
share.
This issue exists due to the fact that Internet Explorer behaves different for
file:// URLs pointing to existing and non-existent files. When used in
combination with HTML5 sandbox iframes it is possible to use this behavior to
find out if a local file exists. This technique only works on Internet Explorer
10 & 11 since these support the HTML5 sandbox. Also it is not possible to do
this from a regular website as file:// URLs are blocked all together. The attack
must be performed locally (works with Internet zone Mark of the Web) or from a
share.
Author
Yorick Koster
Platform
Windows
References
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