Secunia Research: Free Download Manager metalink "name" Directory Traversal

[Secunia Research <remove-vuln () secunia com>]

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                     Secunia Research 13/05/2010

    - Free Download Manager metalink "name" Directory Traversal -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

* Free Download Manager version 3.0 build 850.

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Moderately critical
Impact: System access
Where:  Remote

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3) Vendor's Description of Software 

"What is Free Download Manager? It is a powerful, easy-to-use and
absolutely free download accelerator and manager. Moreover, FDM is
100% safe, open-source software distributed under GPL license.".

Product Link:
http://www.freedownloadmanager.org/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Free Download
Manager, which can be exploited by malicious people to compromise
a user's system.

The "name" attribute of the "file" element of metalink files is not
properly sanitised before being used to download files. If a user is
tricked into downloading from a specially crafted metalink file, this
can be exploited to download files to directories outside of the
intended download directory via directory traversal attacks.

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5) Solution 

Update to version 3.0 build 852.

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6) Time Table 

21/04/2010 - Vendor notified.
26/04/2010 - Vendor response.
13/05/2010 - Public disclosure.

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7) Credits 

Discovered by Stefan Cornelius, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2010-0999 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
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Secunia believes that it is important to support the community and to
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Secunia regularly hires new skilled team members. Check the URL below
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Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-67/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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