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From "Derek Dagit (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4162) Some malformed and unquoted HTML strings are returned from datanode web ui
Date Wed, 07 Nov 2012 22:18:12 GMT
Derek Dagit created HDFS-4162:
---------------------------------

             Summary: Some malformed and unquoted HTML strings are returned from datanode
web ui
                 Key: HDFS-4162
                 URL: https://issues.apache.org/jira/browse/HDFS-4162
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 0.23.4
            Reporter: Derek Dagit
            Priority: Minor


When browsing to the datanode at /browseDirectory.jsp, if a path with HTML characters is requested,
the resulting error page echos back the input unquoted.

Example:

http://localhost:50075/browseDirectory.jsp?dir=/<xss>&go=go&namenodeInfoPort=50070&nnaddr=localhost%3A9000

Writes an input element as part of the response:

<input name="dir" type="text" width="50" id"dir" value="/<xss>">

- The value of the "value" attribute is not quoted. 
- An = must follow the "id" attribute name.
- Element "input" should have a closing tag.

The output should be something like:

<input name="dir" type="text" width="50" id="dir" value="/&lt;xss&gt;"/>


In addition, if one creates a directory:

hdfs dfs -put '/some/path/to/<xss>'

Then browsing to the parent of directory '<xss>' prints unquoted HTML in the directory
names.


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