Advantech WebAccess File and Directory Information Exposure
The BWOCXRUN.BwocxrunCtrl.1 control contains a method named
OpenUrlToBufferTimeout. This method takes a URL as a parameter and
returns its contents to the caller in JavaScript. The URLs are accessed
in the security context of the current browser session. The control does
not perform any URL validation and allows file:// URLs that access the
local disk.
The method can be used to open a URL (including file URLs) and read
the URLs through JavaScript. This method could also be used to reach any
arbitrary URL to which the browser has access.
CVE の解決策
Advantech has created a new version (Version 7.2) that mitigates each
of the vulnerabilities described above. Users may download this version
from the following location at their web site: http://webaccess.advantech.com/downloads.php?item=software
For additional information about WebAccess, please visit the following Advantech web site: http://webaccess.advantech.com/
Insertion of Sensitive Information into Externally-Accessible File or Directory The product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information.
Exposure of Sensitive Information to an Unauthorized Actor The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.