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TITLE:
ionCube Loaders "ioncube_read_file()" Security Bypass

SECUNIA ADVISORY ID:
SA27178

VERIFY ADVISORY:
http://secunia.com/advisories/27178/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
Local system

SOFTWARE:
ionCube Loaders 3.x
http://secunia.com/product/16071/

DESCRIPTION:
shinnai has discovered a security issue in the ionCube loaders, which
can be exploited by malicious, local users to bypass certain access
restrictions.

The vulnerability is caused due to the ionCube loader improperly
checking PHP imposed access restrictions on the "ioncube_read_file()"
function e.g. through the "disable_functions" directive. This can be
exploited to read arbitrary files from the local system by calling
the "ioncube_read_file()" function from a PHP script.

The vulnerability is confirmed in the ionCube loader package version
3.1.32 for Windows (x86) with PHP 5.2.4. Other versions may also be
affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
shinnai

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/4517

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