HtmlHeadLine.sh Unsafe Temporary Files May Let Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1012756 |
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SecurityTracker URL: http://securitytracker.com/id/1012756
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CVE Reference:
CAN-2004-1181
(Links to External Site)
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Updated: Jan 4 2005
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Original Entry Date: Jan 3 2005
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Impact:
Modification of system information, Modification of user information, Root access via local system, User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 21.8; possibly other versions
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Description:
A temporary file vulnerability was reported in 'HtmlHeadLine.sh'. A local user may be able to gain elevated privileges.
Debian reported that the script uses the '/tmp' directory as the download directory for temporary files. A local user can create a symbolic link (symlink) from a critical file on the system to a temporary file to be used by the script. Then, when the script is run, the symlinked file may be overwritten with the privileges of the user running the script.
The HtmlHeadLine.sh, START_HHL_30.sh, and START_HHL.sh scripts are affected.
Javier Fernandez-Sanguino Pena is credited with discovering this flaw.
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Impact:
A local user may be able to gain the privileges of a target user running the affected script.
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Solution:
The most recent versions (32.9 and 33.8) include the option for the user to specify a safe, restricted temporary directory. Those versions are available at:
http://kano.technolust.cx/hhl/
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Vendor URL: kano.technolust.cx/hhl/ (Links to External Site)
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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: Mon, 3 Jan 2005 11:59:37 -0500
Subject: [none]
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CVE: CAN-2004-1181
Debian reported a vulnerability in htmlheadline. The software uses unsafe temporary
files. A local user may be able to gain elevated privileges.
Javier Fernandez-Sanguino Pena is credited with discovering this flaw.
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