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TITLE:
PHP Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA25123

VERIFY ADVISORY:
http://secunia.com/advisories/25123/

CRITICAL:
Moderately critical

IMPACT:
Unknown, Security Bypass, Manipulation of data, Exposure of system
information, Exposure of sensitive information, DoS

WHERE:
>From remote

SOFTWARE:
PHP 5.2.x
http://secunia.com/product/13446/
PHP 4.4.x
http://secunia.com/product/5768/

DESCRIPTION:
Several vulnerabilities and weaknesses have been reported in PHP,
where some have unknown impacts and others can be exploited by
malicious users to manipulate certain data, disclose potentially
sensitive information, bypass certain security restrictions, or to
cause a DoS (Denial of Service).

1) An unspecified error in the "ftp_putcmd()" function can be
exploited to inject newline characters.

2) An unspecified error in the "import_request_variables()" can be
exploited to overwrite global variables.

3) An unspecified error can remotely be exploited to cause a buffer
overflow within in the "make_http_soap_request()" function (PHP 5).

4) An unspecified error can be exploited to cause a buffer overflow
within the "user_filter_factory_create()" function (PHP 5).

5) An unspecified error in the bundled libxmlrpc library can remotely
be exploited to cause a buffer overflow.

6) An input validation error in the "mail()" function allows
injection of headers via the "To" and "Subject" parameters.

7) An error in the "mail()" function allows to truncate messages via
ASCIIZ bytes.

8) The "safe_mode" and "open_basedir" protection mechanisms can be
bypassed via the "zip://" and "bzip://" wrappers.

9) An integer overflow exists in "substr_compare()", which can be
exploited to read memory from memory behind PHP variables. The
"substr_count" function is reportedly also affected.

10) An error in the "mb_parse_str()" can be exploited to activate
"register_globals".

11) An error in the Zend engine related to nested array variables
that can be exploited to crash a PHP application.

SOLUTION:
Update to version 5.2.2 or 4.4.7. Grant only trusted users permission
to execute PHP code.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) loveshell
2) Stefano Di Paola and Steffan Esser
3, 4) Ilia Alshanetsky
5) Stanislav Malyshev
6-11) Stefan Esser

ORIGINAL ADVISORY:
PHP:
http://www.php.net/releases/5_2_2.php
http://www.php.net/releases/4_4_7.php

MOPB:
http://www.php-security.org/MOPB/MOPB-03-2007.html
http://www.php-security.org/MOPB/MOPB-14-2007.html
http://www.php-security.org/MOPB/MOPB-20-2007.html
http://www.php-security.org/MOPB/MOPB-21-2007.html
http://www.php-security.org/MOPB/MOPB-26-2007.html
http://www.php-security.org/MOPB/MOPB-33-2007.html
http://www.php-security.org/MOPB/MOPB-34-2007.html

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