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PHP "mb_send_mail()" "To:" Header Injection Vulnerability
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Secunia Advisory:
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SA17763
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Release Date:
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2005-11-28
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Last Update:
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2005-12-07
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Popularity:
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12,893 views
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Critical:
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Moderately critical
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Impact:
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Security Bypass
Manipulation of data
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Where:
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From remote
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Solution Status:
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Partial Fix
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| Software: | PHP 4.4.x
PHP 5.0.x
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| CVE reference: | CVE-2005-3883
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Description:
s.masugata has reported a vulnerability in PHP, which potentially can be exploited by malicious people to use it as an open mail relay.
The vulnerability is caused due to an input validation error in the "mb_send_mail()" function. This can be exploited to inject arbitrary headers in a mail sent via a script calling the "mb_send_mail()" function where the "To" parameter can be controlled by the attacker.
Solution:
Update to version 5.1.0.
http://www.php.net/downloads.php
Do not call the "mb_send_mail()" function in scripts where input passed to the "To" parameter originates from untrusted sources.
Provided and/or discovered by:
s.masugata
Changelog:
2005-12-07: Added CVE reference.
Original Advisory:
The PHP Group:
http://www.php.net/release_5_1_0.php
s.masugata:
http://bugs.php.net/bug.php?id=35307
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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