Perl File::Path.pm rmtree() Race Condition May Let Local Users Create Privileged Binaries
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SecurityTracker Alert ID: 1014211
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SecurityTracker URL: http://securitytracker.com/id?1014211
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CVE Reference: CVE-2005-0448
(Links to External Site)
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Updated: Dec 20 2005
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Original Entry Date: Jun 16 2005
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Impact: Modification of system information, Root access via local system
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): prior to 5.8.4
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Description: In March 2005, a vulnerability was reported in the rmtree() function in File::Path.pm. A local user may be able to create set user id (setuid) binaries in certain cases.
A local user can exploit a race condition to create setuid binaries in a directory tree while the directory tree is being deleted
by a root level user. The user must have write permissions in that directory tree to exploit this flaw.
Paul Szabo discovered
this vulnerability.
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Impact: A local user can create setuid binaries in certain cases.
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Solution: The vendor has issued a fixed version (5.8.4 or later), available at:
http://www.perl.com/CPAN/src/
Red Hat has issued a fix for Red Hat Enterprise Linux 4:
https://rhn.redhat.com/errata/RHSA-2005-674.html
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Cause: Access control error, State error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Thu, 16 Jun 2005 01:44:05 -0400
Subject: [none]
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In March 2005, a vulnerability was reported in the rmtree() function in File::Path.pm.
A local user can exploit a race condition to create set user id (setuid) binaries
in a directory tree while the directory tree is being deleted by a root level user.
The user must have write permissions in that directory tree to exploit this flaw.
Paul Szabo discovered this vulnerability.
CVE: CAN-2005-0448
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