FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

typo3 -- Multiple vulernabilities in TYPO3 Core

Affected packages
4.5.0 <= typo3 < 4.5.19
4.6.0 <= typo3 < 4.6.12
4.7.0 <= typo3 < 4.7.4


VuXML ID 48bcb4b2-e708-11e1-a59d-000d601460a4
Discovery 2012-08-15
Entry 2012-08-15

Typo Security Team reports:

It has been discovered that TYPO3 Core is vulnerable to Cross-Site Scripting, Information Disclosure, Insecure Unserialize leading to Arbitrary Code Execution.

TYPO3 Backend Help System - Due to a missing signature (HMAC) for a parameter in the view_help.php file, an attacker could unserialize arbitrary objects within TYPO3. We are aware of a working exploit, which can lead to arbitrary code execution. A valid backend user login or multiple successful cross site request forgery attacks are required to exploit this vulnerability.

TYPO3 Backend - Failing to properly HTML-encode user input in several places, the TYPO3 backend is susceptible to Cross-Site Scripting. A valid backend user is required to exploit these vulnerabilities.

TYPO3 Backend - Accessing the configuration module discloses the Encryption Key. A valid backend user with access to the configuration module is required to exploit this vulnerability.

TYPO3 HTML Sanitizing API - By not removing several HTML5 JavaScript events, the API method t3lib_div::RemoveXSS() fails to filter specially crafted HTML injections, thus is susceptible to Cross-Site Scripting. Failing to properly encode for JavaScript the API method t3lib_div::quoteJSvalue(), it is susceptible to Cross-Site Scripting.

TYPO3 Install Tool - Failing to properly sanitize user input, the Install Tool is susceptible to Cross-Site Scripting.