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WU-FTPD "MAIL_ADMIN" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA9835
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Release Date:
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2003-09-24
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Last Update:
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2007-05-21
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Popularity:
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7,414 views
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Critical:
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Moderately 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: | WU-FTPD 2.x
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| CVE reference: | CVE-2003-1327
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Description:
A vulnerability has been reported in WU-FTPD, which potentially can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the "SockPrintf()" function. This can be exploited by uploading a file with an overly long, specially crafted name, which causes a buffer overflow when the program tries to inform the administrator that a file has been uploaded anonymously.
Successful exploitation may allow execution of arbitrary code on the system. However, it requires that the option "MAIL_ADMIN" has been enabled (not default), that anonymous users have write permissions on a folder, and that the program has been compiled on a system where very long paths are permitted.
Solution:
Make sure that the "MAIL_ADMIN" option is disabled in the configuration file.
Provided and/or discovered by:
pi3
Changelog:
2007-05-21: 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.
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