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Secunia Research 13/05/2010
- KDE KGet metalink "name" Directory Traversal Vulnerability -
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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
* KDE 4.4.2 (KGet 2.4.2)
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
"KGet is the download manager for KDE".
Product Link:
http://www.kde.org/applications/internet/kget/
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4) Description of Vulnerability
Secunia Research has discovered a vulnerability in KDE, which can be
exploited by malicious people to compromise a user's system.
The vulnerability is caused due to KGet 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
Apply patches for the 4.3 and 4.4 branches committed to the KDE
Subversion repository.
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6) Time Table
30/04/2010 - Vendor notified.
02/05/2010 - 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-2010-1000 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/2010-69/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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