TITLE:
MySQL mysqlaccess Script Insecure Temporary File Creation

SECUNIA ADVISORY ID:
SA13867

VERIFY ADVISORY:
http://secunia.com/advisories/13867/

CRITICAL:
Less critical

IMPACT:
Manipulation of data, Exposure of sensitive information, Privilege
escalation

WHERE:
Local system

SOFTWARE:
MySQL 4.x
http://secunia.com/product/404/

DESCRIPTION:
Javier Fernández-Sanguino Peña has reported a vulnerability in MySQL,
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 mysqlaccess script creating
temporary files insecurely. This can be exploited via symlink attacks
to overwrite or disclose the content of arbitrary files with the
privileges of the user running the vulnerable script.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Javier Fernández-Sanguino Peña

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