Bug 1207781 - (CVE-2015-1786) CVE-2015-1786 php-ZendFramework2: invalid CSRF validation of null or incorrectly formatted token identifiers (ZF2015-03)
CVE-2015-1786 php-ZendFramework2: invalid CSRF validation of null or incorrec...
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 1207782 1207783
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Reported: 2015-03-31 12:49 EDT by Vasyl Kaigorodov
Modified: 2016-01-21 05:25 EST (History)
4 users (show)

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Fixed In Version: Zend Framework 2.3.6
Doc Type: Bug Fix
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Last Closed: 2015-07-21 05:37:59 EDT
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Description Vasyl Kaigorodov 2015-03-31 12:49:14 EDT
Zend\Validator\Csrf, starting in the Zend Framework 2.3 series, was not correctly identifying null or mal-formatted token identifiers, leading to false positive validations, and thus potentially allowing for Cross-Site Request Forgery vectors.

A patch was written that correctly identifies invalid token identifiers, ensuring that they invalidate the provided value.
It was discovered that the vulnerability was introduced specifically in the 2.3 series, and thus no patch was necessary against the 2.2 series.
Comment 1 Vasyl Kaigorodov 2015-03-31 12:49:53 EDT
Created php-ZendFramework2 tracking bugs for this issue:

Affects: fedora-all [bug 1207782]
Affects: epel-all [bug 1207783]
Comment 2 Shawn Iwinski 2015-07-19 22:09:46 EDT
All dependent bugs have been closed, can this tracking bug be closed as well?
Comment 3 Vasyl Kaigorodov 2015-07-21 05:37:59 EDT
Yep, this one can (and should) be closed.
Doing now.

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