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TITLE:
netperf "netperf.debug" Insecure File Creation Vulnerability

SECUNIA ADVISORY ID:
SA24464

VERIFY ADVISORY:
http://secunia.com/advisories/24464/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
netperf 2.x
http://secunia.com/product/13631/

DESCRIPTION:
Ben Hutchings has discovered a vulnerability in netperf, which can be
exploited by malicious, local users to perform certain actions with
escalated privileges.

The vulnerability is caused due to the file "/tmp/netperf.debug"
being created insecurely during the start of "netserver". This can be
exploited via symlink attacks to overwrite arbitrary files with
privileges of the user running netserver.

The vulnerability is confirmed in version 2.4.3. Other versions may
also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Reported in a Debian bug report by Ben Hutchings.

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=413658

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About:
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