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QuiXplorer Directory Traversal
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SUMMARY
<http://quixplorer.sourceforge.net/> QuiXplorer is "a simple, but fully
functional, file manager for websites. QuiXplorer allows you to browse the
files and directories on your web server (with PHP4) (without using an
external FTP-client)".
A vulnerability in the QuiXplorer allows remote attackers to retrieve
arbitrary files that reside outside the bound HTML root directory.
DETAILS
Vulnerable Systems:
* QuiXplorer version 2.3
Immune Systems:
* QuiXplorer version 2.3.1
QuiXplorer does not apply filters on user inputs when a download is
requested. The directory parameter is well filtered to check that it does
not create a request that goes outside the authorized directories, but the
item can contains parent directory references.
Exploit:
By requesting a URL such as:
http://vuln/quixplorer_2_3/index.php?action=download&dir=&item=../../../../../../etc/passwd&order=name&srt=yes
Solution:
Upgrade to version 2.3.1 or newer.
ADDITIONAL INFORMATION
The information has been provided by <mailto:cb-publicbox@ifrance.com>
Cyrille Barthelemy.
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