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Serendipity Script Insertion and Cross-Site Scripting
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Secunia Advisory:
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SA29128
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Release Date:
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2008-02-27
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Last Update:
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2008-03-18
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Critical:
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Less critical
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Impact:
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Cross Site Scripting
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Where:
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From remote
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Solution Status:
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Partial Fix
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| Software: | Serendipity 1.x
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| | CVE reference: | CVE-2008-0124 (Secunia mirror)
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Description:
Hanno Boeck has discovered two vulnerabilities in Serendipity, which can be exploited by malicious users to conduct cross-site scripting and script insertion attacks.
1) Input passed to the "realname" parameter in serendipity_admin.php is not properly sanitised before being stored. This can be exploited to insert arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when the malicious data is viewed.
2) The serendipity_admin.php script fails to completely validate the extension of an uploaded file. This can be exploited to upload files with the ".html" extension, which can then be used for cross-site scripting attacks.
Successful exploitation of both vulnerabilities requires valid user credentials.
The vulnerabilities are confirmed in version 1.2.1. Other versions may also be affected.
Solution:
Only grant access to trusted users.
Update to version 1.3, which fixes vulnerability #1.
Provided and/or discovered by:
Hanno Boeck
Changelog:
2008-03-18: Updated "Solution" and "Original Advisory" sections.
Original Advisory:
Serendipity:
http://blog.s9y.org/archives/192-Sere...-1.3-released-addresses-security.html
Hanno Boeck:
http://int21.de/cve/CVE-2008-0124-s9y.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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5 Related Secunia Security Advisories
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1. Serendipity Top Referrers Plugin Script Insertion Vulnerability
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2. Serendipity Security Bypass and Script Insertion Vulnerabilities
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3. Serendipity Remote RSS Sidebar Plugin Script Insertion
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4. Serendipity Extended Properties For Entries Security Bypass
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5. Serendipity Cross-Site Scripting Vulnerabilities
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