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PHP "html_entity_decode()" Information Disclosure Vulnerability
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Secunia Advisory:
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SA19383
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Release Date:
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2006-03-29
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Last Update:
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2006-05-04
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Popularity:
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11,981 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | PHP 4.3.x
PHP 4.4.x
PHP 5.0.x
PHP 5.1.x
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Subscribe:
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| CVE reference: | CVE-2006-1490
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Description:
A vulnerability has been discovered in PHP, which can be exploited by malicious people to gain knowledge of potentially sensitive information.
The vulnerability is caused due to the "html_entity_decode()" PHP function not being binary safe. This can be exploited to disclose certain part of the memory via a script calling the "html_entity_decode()" function with input controlled by the attacker and where the result is sent to the attacker.
Successful may allow disclosure of e.g. passwords stored in a PHP script.
The vulnerability has been confirmed in versions 4.4.2 and 5.1.2. Prior versions may also be affected.
Solution:
The vulnerability has been fixed in the CVS repository and in version 5.1.3.
Do not call the "html_entity_decode()" function in PHP scripts where the input originates from untrusted sources.
Provided and/or discovered by:
Discovered by the vendor and reported to public mailing lists by Tõnu Samuel.
Changelog:
2006-04-03: Added CVE reference.
2006-05-04: Updated "Solution" section.
Original Advisory:
Tõnu Samuel:
http://archives.neohapsis.com/archives/fulldisclosure/2006-03/1675.html
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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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