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Posted to dev@tomcat.apache.org by bu...@apache.org on 2016/03/29 09:35:12 UTC

[Bug 59243] New: Path traversal Attack

https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

            Bug ID: 59243
           Summary: Path traversal Attack
           Product: Tomcat 7
           Version: 7.0.67
          Hardware: PC
                OS: Mac OS X 10.1
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Servlet & JSP API
          Assignee: dev@tomcat.apache.org
          Reporter: muthukumar13402040@gmail.com

RequestDispatcher.forward() method allows to access /WEB-INF folder. This is an
issue ??

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

--- Comment #7 from Mark Thomas <ma...@apache.org> ---
Bugzilla is not a support forum. Your questions belong on the users mailing
list.

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

--- Comment #3 from muthukumar <mu...@gmail.com> ---
Think my scenario . It is possible to make path traversal attack . It must be a
security issue?

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

Violeta Georgieva <vi...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |INVALID

--- Comment #4 from Violeta Georgieva <vi...@apache.org> ---
(In reply to muthukumar from comment #2)
> the param for RequestDispatcher is coming from url parameter .

Fix you application.

Regards,
Violeta

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

--- Comment #5 from Christopher Schultz <ch...@christopherschultz.net> ---
(In reply to Violeta Georgieva from comment #4)
> Fix your application.

Correct. The path-traversal vulnerability has been introduced by your own
application, not by Tomcat.

One of the best ways to prevent this kind of thing is to white-list certain
paths that are acceptable (and won't ever cause a path-traversal issue).

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

muthukumar <mu...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |---

--- Comment #2 from muthukumar <mu...@gmail.com> ---
I used RequestDispatcher in my app and the param for RequestDispatcher is
coming from url parameter . If an attacker changes this parameter value to
"/WEB-INF/web.xml" he can access my secret files . Do you proper solution???

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

--- Comment #6 from muthukumar <mu...@gmail.com> ---
Ok We whitelisted that paths.. But we want a proper solution . Whitelisted is a
proper solution ? Please explain me the CVE 2008-5515

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[Bug 59243] Path traversal Attack

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59243

Violeta Georgieva <vi...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Violeta Georgieva <vi...@apache.org> ---
Hi,

Why do you think so?

In the spec it is stated 

"
10.5 Directory Structure
...However, the contents of the WEB-INF directory are visible to servlet code
using the getResource and getResourceAsStream method calls on the
ServletContext, and may be exposed using the RequestDispatcher calls..."

Regards,
Violeta

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