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Secunia Research 08/04/2010
- Pulse CMS Arbitrary File Upload 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
* Pulse CMS basic version 1.2.2 and 1.2.3
NOTE: Other versions may also be affected.
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2) Severity
Rating: Moderately critical
Impact: System access
Where: From remote
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3) Vendor's Description of Software
"Pulse is a simple CMS designed for small websites. It enables you to
take an existing site and add content management in five minutes.".
Product Link:
http://pulsecms.com/
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4) Description of Vulnerability
Secunia Research has discovered a vulnerability in Pulse CMS, which
can be exploited by malicious users to compromise a vulnerable system.
An error in the validation of uploaded image files can be exploited to
upload files with an arbitrary extension to a folder within the web
root. This can be exploited to upload and execute arbitrary PHP code.
Successful exploitation requires authentication.
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5) Solution
Partially fixed in version 1.2.4.
It can still be exploited to execute arbitrary PHP code by uploading
a malicious PHP script with multiple extensions (e.g. "shell.php.gif")
if Apache is not configured to handle the mime-type for media files
with an e.g. "gif" extension.
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6) Time Table
19/03/2010 - Vendor notified.
19/03/2010 - Vendor response.
08/04/2010 - Public disclosure.
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7) Credits
Discovered by Secunia Research.
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8) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-0993 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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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/2010-47/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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