TITLE:
Flexbackup Insecure Temporary File Creation

SECUNIA ADVISORY ID:
SA17209

VERIFY ADVISORY:
http://secunia.com/advisories/17209/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Flexbackup 1.x
http://secunia.com/product/5888/

DESCRIPTION:
Eric Romang has reported a vulnerability in Flexbackup, 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 Flexbackup creating temporary
files insecurely in "/tmp" in its default configuration. This can be
exploited via symlink attacks to create or overwrite arbitrary files
with the privileges of the user running the affected script.

The vulnerability has been reported in version 1.2.1 and prior.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Eric Romang

ORIGINAL ADVISORY:
http://www.zataz.net/adviso/flexbackup-09192005.txt

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