TYPO3-CORE-SA-2015-014: TYPO3 is susceptible to Cross-Site Flashing

December 15, 2015

Category: TYPO3 CMS
Author: Nicole Cordes
Keywords: TYPO3 CMS, Cross-Site Flashing

It has been discovered, that TYPO3 is susceptible to Cross-Site Flashing

Component Type: TYPO3 CMS

Release Date: December 15, 2015

 

Vulnerable subcomponent: Flvplayer

Vulnerability Type:

Affected Versions: Versions 6.2.0 to 6.2.15

Severity: Medium

Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:F/RL:O/RC:C

CVE: not assigned yet

Problem Description: The flashplayer misses to validate flash and image files. Therefore it is possible to embed flash videos from external domains.

Solution: Update to TYPO3 versions 6.2.16 that fix the problem described.

Credits: Thanks to Heiko Kromm who discovered and reported the issue.

 

General Advice: Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.

General Note: All security related code changes are tagged so that you can easily look them up on our review system.