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Date: Thu, 26 May 2016 02:18:16 -0400 (EDT)
From: cve-assign@...re.org
To: stefan.horlacher@...us-security.ch
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE-Request: TYPO3 Extbase Missing Access Check
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Hash: SHA256
> https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-013/
> TYPO3-CORE-SA-2016-013
>
> Extbase request handling fails to implement a proper access check for
> requested controller/ action combinations, which makes it possible for
> an attacker to execute arbitrary Extbase actions by crafting a special
> request. To successfully exploit this vulnerability, an attacker must
> have access to at least one Extbase plugin or module action in a TYPO3
> installation. The missing access check inevitably leads to information
> disclosure or remote code execution, depending on the action that an
> attacker is able to execute.
> TYPO3 installations with at least one publicly available Extbase
> action, are exploitable without any further authentication.
>
> TYPO3 installations without publicly available Extbase actions, are
> still exploitable for authenticated backend users with access to a
> backend module, which is based on Extbase.
Use CVE-2016-5091 for both of these installation scenarios. As far as
we can tell, the second scenario ("without publicly available") occurs
only because TYPO3 Core code (or a copy of TYPO3 Core code) exists in,
or is reachable by, a (supported or unsupported) backend module.
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
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