Secunia Research: Orbit Downloader metalink "name" Directory Traversal

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                     Secunia Research 19/05/2010

     - Orbit Downloader 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 

* Orbit Downloader 3.0.0.4 and 3.0.0.5

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 

"Orbit Downloader, leader of download manager revolution, is devoted
to new generation web (web2.0) downloading, such as video/music/
streaming media from Myspace, YouTube, Imeem, Pandora, Rapidshare, 
support RTMP. And to make general downloading easier and faster.".

Product Link:
http://www.orbitdownloader.com/index.htm

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4) Description of Vulnerability

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

The vulnerability is caused due to the application not properly
sanitising the "name" attribute of the "file" element of metalink
files before using it 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 

Do not open untrusted metalink files.

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6) Time Table 

30/04/2010 - Vendor notified.
12/05/2010 - Vendor notified (2nd attempt).
19/05/2010 - 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 not yet
assigned a CVE identifier for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
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Secunia also provides a publicly accessible and comprehensive advisory
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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-73/

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

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