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                    Secunia Research 20/01/2014

             OpenPNE PHP Object Injection Vulnerability
      
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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software

* OpenPNE 3.6.13
* OpenPNE 3.8.9

NOTE: Prior versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System access, Manipulation of data
Where:  From remote

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3) Vendor's Description of Software 

"OpenPNE is a Social Networking Service Engine written in PHP."

Product Link:
http://www.openpne.jp/
 
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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in OpenPNE,
which can be exploited by malicious people to manipulate
certain data or compromise a vulnerable system.

The vulnerability is caused due to the
"opSecurityUser::getRememberLoginCookie()" method defined
in the /lib/user/opSecurityUser.class.php script using the
"unserialize()" function with user controlled input.
This can be exploited to e.g. delete arbitrary files or
execute arbitrary PHP code via specially crafted serialized
objects sent in a "Cookie" header.

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5) Solution 

Update to version 3.6.13.1 or 3.8.9.1.

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6) Time Table 

20/11/2013 - Vendor notified.
16/12/2013 - Vendor acknowledges report and states fixed releases
             planned for January 2014.
27/12/2013 - Vendor creates patches and states fixed releases
             planned for January 20, 2014.
08/01/2014 - Vulnerability details sent to IPA Security Center.
20/01/2014 – Vendor released fixed versions.
20/01/2014 – Public disclosure.

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7) Credits 

Discovered by Egidio Romano, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
the CVE-2013-5350 identifier for the vulnerability.
 
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9) About Secunia

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2014-1/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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