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FreeRADIUS "dialup_admin" Insecure Temporary Files
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Secunia Advisory:
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SA32170
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Release Date:
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2008-10-08
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Last Update:
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2008-12-08
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Popularity:
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1,644 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: | FreeRADIUS 1.x
FreeRADIUS 2.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2008-4474
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Description:
Some vulnerabilities have been reported in FreeRADIUS, which can be exploited by malicious, local users to perform certain actions with escalated privileges.
The vulnerabilities are caused due to the "dialup_admin/bin/backup_radacct", "dialup_admin/bin/clean_radacct", "dialup_admin/bin/monthly_tot_stats", "dialup_admin/bin/tot_stats", and "dialup_admin/bin/truncate_radacct" scripts handling temporary files in an insecure manner. These can be exploited via symlink attacks to e.g. overwrite arbitrary files with escalated privileges.
The vulnerabilities are reported in version 2.0.4. Other versions may also be affected.
Solution:
Update to version 2.1.3.
Provided and/or discovered by:
Reported by Dmitry E. Oboukhov in a Debian bug report.
Changelog:
2008-12-04: Updated "Solution" section. Added vendor links to the "Original Advisory" section.
2008-12-08: Updated "Solution" section due to the vendor removing version 2.1.2.
Original Advisory:
FreeRADIUS:
http://bugs.freeradius.org/show_bug.cgi?id=605
http://freeradius.org/press/index.html#2.1.2
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496389
http://uvw.ru/report.lenny.txt
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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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