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PHP CURL "open_basedir" Security Bypass Vulnerability
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Secunia Advisory:
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SA13023
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Release Date:
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2004-10-29
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Last Update:
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2005-04-01
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Popularity:
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14,065 views
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Critical:
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Not critical
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Impact:
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Security Bypass
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | PHP 4.0.x
PHP 4.1.x
PHP 4.2.x
PHP 4.3.x
PHP 5.0.x
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| CVE reference: | CVE-2004-1392
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Description:
FraMe has discovered a vulnerability in PHP, which can be exploited by malicious, local users to access files outside the "open_basedir" root.
The vulnerability is caused due to some CURL functions not obeying the "open_basedir" directive, which is designed to restrict PHP scripts in certain environments from accessing files outside the defined root directories. This can be exploited to access files outside the "open_basedir" root by using the functions "curl_init()" and "curl_exec()".
The vulnerability has been confirmed on PHP version 4.3.8 with CURL 7.10.6. Other versions may also be affected.
Solution:
Update to version 4.3.11 or 5.0.4.
http://www.php.net/downloads.php
Provided and/or discovered by:
FraMe
Changelog:
2005-02-07: Added CVE reference.
2005-04-01: Updated "Solution" section.
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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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