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PHP "snmpget()" and "session_decode()" Vulnerabilities
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Secunia Advisory:
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SA24440
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Release Date:
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2007-03-12
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Last Update:
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2007-04-02
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Popularity:
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9,055 views
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Critical:
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Less 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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Unpatched
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| Software: | PHP 4.4.x
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| CVE reference: | CVE-2007-1413
CVE-2007-1711
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Description:
Some vulnerabilities in PHP4 have been reported, which can be exploited by malicious, local users to bypass certain security restrictions.
1) A boundary error in the "snmpget()" function can be exploited to cause a stack-based buffer overflow via an overly long argument.
2) A double free error exists in the deserialisation of session data, which can be exploited via the "session_decode()" function.
Successful exploitation of these vulnerabilities allows execution of arbitrary code, which can lead to security restrictions, such as the "disable_functions" directive, being bypassed.
The vulnerabilities are reported in version 4.4.6. Other versions may also be affected.
Solution:
Grant only trusted users access to affected systems.
Provided and/or discovered by:
1) rgod
2) Stefan Esser
Changelog:
2007-03-14: Added CVE reference.
2007-03-26: Added vulnerability #2.
2007-04-02: Added CVE reference.
Original Advisory:
1) http://milw0rm.com/exploits/3439
2) http://www.php-security.org/MOPB/MOPB-32-2007.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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