Difference between revisions of "Absolute Path Traversal"

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==Description==
 
==Description==
 
 
If a product expects a filename as input it is possible that it can construct an absolute path such as "/rootdir/subdir," which is then processed by the operating system to access a file or resource that is outside of a restricted path that was intended by the developer.
 
If a product expects a filename as input it is possible that it can construct an absolute path such as "/rootdir/subdir," which is then processed by the operating system to access a file or resource that is outside of a restricted path that was intended by the developer.
  
 
This is similar to path traversal but uses only "/" and not ".." to gain access.
 
This is similar to path traversal but uses only "/" and not ".." to gain access.
 
More detailed information can be found on [[Path_Traversal]]
 
More detailed information can be found on [[Path_Traversal]]
 
  
 
==Risk Factors==
 
==Risk Factors==
 
 
  
 
==Examples==
 
==Examples==
  
 
===How does the attack work?===
 
===How does the attack work?===
 
 
:The following URLs maybe are vulnerable to this attack:
 
:The following URLs maybe are vulnerable to this attack:
  
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:When the web server returns information about errors in a web application, it is much easier for the attacker to guess the correct locations (e.g. path to the file with a source code, which then may be displayed).
 
:When the web server returns information about errors in a web application, it is much easier for the attacker to guess the correct locations (e.g. path to the file with a source code, which then may be displayed).
 
  
 
==Related [[Threat Agents]]==
 
==Related [[Threat Agents]]==
 
 
* [[:Category: Information Disclosure]]
 
* [[:Category: Information Disclosure]]
 
  
 
==Related [[Attacks]]==
 
==Related [[Attacks]]==
 
 
* [[Path Manipulation]]
 
* [[Path Manipulation]]
 
* [[Path Traversal]]
 
* [[Path Traversal]]
 
* [[Resource Injection]]
 
* [[Resource Injection]]
 
  
 
==Related [[Vulnerabilities]]==
 
==Related [[Vulnerabilities]]==
 
 
* [[:Category:Input Validation Vulnerability]]
 
* [[:Category:Input Validation Vulnerability]]
  
  
 
==Related [[Controls]]==
 
==Related [[Controls]]==
 
 
* [[:Category:Input Validation]]
 
* [[:Category:Input Validation]]
 
  
 
==References==
 
==References==
 
 
  
 
[[Category:Abuse of Functionality]]
 
[[Category:Abuse of Functionality]]
 
[[Category:Path Traversal Attack]]
 
[[Category:Path Traversal Attack]]
 
[[Category:Resource Manipulation]]
 
[[Category:Resource Manipulation]]

Revision as of 23:21, 7 August 2008


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This is an Attack. To view all attacks, please see the Attack Category page.


Last revision (mm/dd/yy): 08/7/2008

Description

If a product expects a filename as input it is possible that it can construct an absolute path such as "/rootdir/subdir," which is then processed by the operating system to access a file or resource that is outside of a restricted path that was intended by the developer.

This is similar to path traversal but uses only "/" and not ".." to gain access. More detailed information can be found on Path_Traversal

Risk Factors

Examples

How does the attack work?

The following URLs maybe are vulnerable to this attack:
http://testsite.com/get.php?f=list
http://testsite.com/get.cgi?f=2
http://testsite.com/get.asp?f=test
A simple way to execute this attack is like this:
http://testsite.com/get.php?f=/var/www/html/get.php
http://testsite.com/get.cgi?f=/var/www/html/admin/get.inc
http://testsite.com/get.asp?f=/etc/passwd
When the web server returns information about errors in a web application, it is much easier for the attacker to guess the correct locations (e.g. path to the file with a source code, which then may be displayed).

Related Threat Agents

Related Attacks

Related Vulnerabilities


Related Controls

References