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Net-snmp fixproc Insecure Temporary File Creation
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Secunia Advisory:
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SA15471
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Release Date:
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2005-05-24
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Last Update:
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2005-06-21
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Popularity:
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7,798 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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Vendor Patch
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| Software: | Net-snmp 5.x
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| CVE reference: | CVE-2005-1740
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Description:
Eric Romang has reported a vulnerability in Net-snmp, 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 fixproc creating temporary files insecurely. This can be exploited via symlink attacks to create or overwrite arbitrary files on the system with the privileges of the user running fixproc.
It may potentially also be possible to execute arbitrary code with escalated privileges by exploiting a race condition to manipulate the contents of the temporary file before it's executed.
The vulnerability has been reported in versions 5.2.1 and prior.
Solution:
The vulnerability has been fixed in versions 5.0.10 and 5.1.3.pre1.
Provided and/or discovered by:
Eric Romang
Changelog:
2005-05-26: Added CVE reference.
2005-06-12: Updated "Solution" section.
2005-06-21: Added version 5.1.3.pre1 as fixed.
Original Advisory:
Eric Romang:
http://www.zataz.net/adviso/net-snmp-05182005.txt
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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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