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123 Flash Chat Server Username Directory Traversal Vulnerability
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Secunia Advisory:
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SA18455
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Release Date:
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2006-01-16
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Last Update:
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2006-08-04
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Popularity:
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5,713 views
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Critical:
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Moderately critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | 123 Flash Chat Server 5.x
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| CVE reference: | CVE-2006-0223
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Description:
Jesus Olmos Gonzalez has reported a vulnerability in 123 Flash Chat (123FlashChat) Server, which can be exploited by malicious people to bypass certain security restrictions.
Input passed in the "user" (username) field in the new user registration screen isn't properly santised before being used to create files. This can be exploited to create arbitrary files with privileges of the server process via directory traversal attacks. This potentially allows execution of arbitrary commands by e.g. creating files in the startup folder.
The vulnerability has been reported in version 5.1_1. Prior versions may also be affected.
Solution:
Update to version 5.1_2.
http://www.123flashchat.com/download.html
Provided and/or discovered by:
Jesus Olmos Gonzalez
Changelog:
2006-08-04: Added CVE reference.
Original Advisory:
http://www.123flashchat.com/flash-chat-server-v512.html
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About this Secunia Advisory
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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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