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LM Sensors Insecure Temporary File Creation Vulnerability
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Secunia Advisory:
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SA16501
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Release Date:
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2005-08-22
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Last Update:
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2005-08-24
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Popularity:
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6,270 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | LM Sensors 2.x
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| CVE reference: | CVE-2005-2672
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Description:
Javier Fernandez-Sanguino Pena has reported a vulnerability in LM Sensors, which can be exploited by malicious, local users to perform certain actions on a vulnerable system with escalated privileges.
The vulnerability is caused due to the pwmconfig script creating the temporary file "/tmp/fancontrol" insecurely when saving configurations. This can be exploited via symlink attacks to create or overwrite arbitrary files with the privileges of the user invoking the vulnerable script.
The vulnerability has been reported in version 2.9.1. Other versions may also be affected.
Solution:
Grant only trusted users access to vulnerable systems.
Provided and/or discovered by:
Javier Fernandez-Sanguino Pena
Changelog:
2005-08-24: Added CVE reference.
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About this Secunia Advisory
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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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