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Discuz! Multiple File Extensions Script Upload Vulnerability
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Secunia Advisory:
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SA16433
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Release Date:
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2005-08-16
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Last Update:
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2005-08-18
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Crossday Discuz! Board 2.x
Crossday Discuz! Board 3.x
Crossday Discuz! Board 4.x
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| | CVE reference: | CVE-2005-2614 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Jeremy Bae has reported a vulnerability in Discuz!, which potentially can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to an error in the handling of file uploads where a filename has multiple file extensions. This can be exploited to upload malicious script files inside the web root.
Successful exploitation may allow execution of script code, but requires permissions to upload file attachments and knowledge of the filename used to save the uploaded attachment.
The vulnerability has been reported in versions 4.0.0 rc4 and prior.
Solution:
Allow only trusted users to upload file attachments.
Provided and/or discovered by:
Jeremy Bae, STG Security.
Changelog:
2005-08-18: Added CVE reference.
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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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2 Related Secunia Security Advisories
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1. Discuz! "cdb_auth" SQL Injection Vulnerability
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2. Crossday Discuz! Board Cross Site Scripting Vulnerability
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