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WU-FTPD Directory Access Restriction Bypass Vulnerability
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Secunia Advisory:
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SA11055
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Release Date:
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2004-03-09
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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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| Software: | WU-FTPD 2.x
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| | CVE reference: | CVE-2004-0148 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Glenn Stewart has discovered a vulnerability in wu-ftpd, which can be exploited by malicious, authenticated users to circumvent certain restrictions.
A user can reportedly bypass the directory access restrictions imposed by the "restricted-gid" option by changing the permissions on their home directory using chmod. This will cause wu-ftpd to fall back to the root directory on subsequent logins when access to the user's home directory is denied.
Solution:
Don't rely solely on the "restricted-gid" option to restrict access.
Provided and/or discovered by:
Glenn Stewart
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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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4 Related Secunia Security Advisories
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1. WU-FTPD Wildcard Denial of Service Vulnerability
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2. WU-FTPD S/KEY Authentication Buffer Overflow Vulnerability
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3. WU-FTPD "MAIL_ADMIN" Buffer Overflow Vulnerability
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4. WU-FTPD "fb_realpath" Buffer Overflow Vulnerability
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