Difference between revisions of "Full Path Disclosure"
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Revision as of 07:28, 26 May 2008
Last revision (mm/dd/yy): 05/26/2008
Full Path Disclosure (AKA, FPD) vulnerabilities enable the attacker to see the path to the webroot/file. Eg: /home/omg/htdocs/file/. Certain vulnerabilities such as using the load_file() (within an SQL injection) query to view page sources require the attacker to have the full path to the file they wish to view.
- Empty Array
If we have a site that uses a method of requesting a page like this:
We can use a method of opening and closing braces and causing the page to output an error. This method would look like this:
This renders the page defunct thus spitting out an error:
Warning: opendir(Array): failed to open dir: No such file or directory in /home/omg/htdocs/index.php on line 84 Warning: pg_num_rows(): supplied argument ... in /usr/home/example/html/pie/index.php on line 131
- Null Session Cookie
By simply setting the PHPSESSID cookie to nothing (null) we get an error.
Warning: session_start() [function.session-start]: The session id contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,' in /home/example/public_html/includes/functions.php on line 2
Related Threat Agents
This vulnerability is prevented simply by turning error reporting off so your code does not spit out errors.