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FreeBSD ftpd chroot Security Bypass Security Issue
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Secunia Advisory:
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SA36353
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Release Date:
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2009-08-28
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Popularity:
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1,722 views
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Critical:
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Less 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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Unpatched
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| OS: | FreeBSD 6.x
FreeBSD 7.1
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Kingcope has discovered a security issue in FreeBSD's ftpd, which can be exploited by malicious users to bypass certain security restrictions.
The security issue is caused due to the ftpd not correctly checking for certain error conditions when trying to read a user's chroot information from /etc/ftpchroot. A user can exploit this to bypass the chroot protection by e.g. uploading ".login_conf" and ".login_conf.db" files with the "openfiles" resource limit set to 5 into a home directory.
The security issue is confirmed in FreeBSD 7.2. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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