Apache IncludesNoExec Options Restrictions Can Be Bypass By Local Users
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SecurityTracker Alert ID: 1022296 |
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SecurityTracker URL: http://securitytracker.com/id/1022296
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CVE Reference:
CVE-2009-1195
(Links to External Site)
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Date: May 27 2009
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Impact:
Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes
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Version(s): 2.2.11
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Description:
A vulnerability was reported in Apache. A local user can bypass security restrictions.
The "Options" and "AllowOverride" directives are not properly processed. A local user can enable Server Side Includes (SSI) even when the "IncludesNoEXEC" option is set.
If the system is configured with "AllowOverride Options=IncludesNoEXEC", a local user can place "Options Includes" in a '.htaccess' file to cause Server Side Includes to be enabled with exec privileges.
If the system is configured with "AllowOverride Options=IncludesNoEXEC" and with "Options IncludesNoExec" enabled in the same <Directory> context, a local user can place "Options +IncludesNoExec" in a '.htaccess' file to cause Server Side Includes to be enabled with exec privileges.
Jonathan Peatfield reported this vulnerability.
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Impact:
A local user can enable Server Side Includes in certain cases when SSI execution should be prohibited.
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Solution:
The vendor has issued a source code fix, available at:
http://svn.apache.org/viewvc?view=rev&revision=772997
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Vendor URL: httpd.apache.org/ (Links to External Site)
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Cause:
Access control error
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Underlying OS:
Linux (Any), UNIX (Any), Windows (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: Wed, 27 May 2009 17:02:38 -0400
Subject: Apache httpd
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A flaw was found in the handling of the "Options" and "AllowOverride"
directives. In configurations using the "AllowOverride" directive with
certain "Options=" arguments, local users were not restricted from
executing commands from a Server-Side-Include script as intended.
(CVE-2009-1195)
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