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Pablo FTP Server Allows Remote Detection of Local Files
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Secunia Advisory:
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SA10661
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Release Date:
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2004-01-19
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Popularity:
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6,234 views
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Critical:
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Not critical
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Impact:
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Exposure of system information
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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: | Pablo FTP Server 1.x
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Description:
Arnaud Jacques has identified a vulnerability in Pablo FTP Server, allowing malicious people to determine if a certain file exists on a vulnerable system.
The problem is that the "del" command returns different error messages. A "550 Permission denied" error message is returned when a file exists, whereas a "550 File not found" error message is returned when the file doesn't exist. This can be exploited to enumerate the presence of files using the "../" character sequence.
The vulnerability affects version 1.77 and possibly prior.
Solution:
Update to version 1.8.
http://www.pablovandermeer.nl/ftp_server.html
Provided and/or discovered by:
Arnaud Jacques aka scrap
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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.
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