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Secunia Research: Free Download Manager Remote Control Server Buffer Overflow
- To: bugtraq@xxxxxxxxxxxxxxxxx
- Subject: Secunia Research: Free Download Manager Remote Control Server Buffer Overflow
- From: Secunia Research <remove-vuln@xxxxxxxxxxx>
- Date: Mon, 2 Feb 2009 12:36:54 +0100
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Secunia Research 02/02/2009
- Free Download Manager Remote Control Server Buffer Overflow -
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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 2.5 Build 758
* Free Download Manager 3.0 Build 844
NOTE: Other versions may also be affected.
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2) Severity
Rating: Highly critical
Impact: System compromise
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 vulnerability is caused due to a boundary error in the Remote
Control Server when processing "Authorization" headers in HTTP
requests. This can be exploited to cause a stack-based buffer overflow
via an HTTP request containing an overly long "Authorization" header.
Successful exploitation allows execution of arbitrary code.
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5) Solution
Update to version 3.0 build 848.
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6) Time Table
20/01/2009 - Form submitted on the vendor's website asking for e-mail
address of security contact.
27/01/2009 - E-mail sent to various e-mail addresses asking for
contact information of security contact.
27/01/2009 - Vendor response (e-mail address of security contact
provided).
28/01/2009 - Vulnerability details sent to the vendor.
28/01/2009 - Fixed version provided for testing by the vendor.
28/01/2009 - Vendor informed that vulnerability is fixed.
31/01/2009 - Vendor issues fixed version.
02/02/2009 - Public disclosure.
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7) Credits
Discovered by Carsten Eiram, Secunia Research.
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8) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2009-0183 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
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.
http://secunia.com/advisories/
Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:
http://secunia.com/secunia_research/
Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:
http://secunia.com/corporate/jobs/
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/2009-3/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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