==================================================================== CERT-Renater Note d'Information No. 2016/VULN154 _____________________________________________________________________ DATE : 13/04/2016 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Samba versions prior to 4.4.2, 4.3.8, 4.2.11. ====================================================================== https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-009 https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-010 https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-011 https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-012 _____________________________________________________________________ TYPO3-CORE-SA-2016-009: Cross-Site Scripting in TYPO3 Backend April 12, 2016 Category: TYPO3 CMS Author: Helmut Hummel Keywords: Backend, Cross-Site Scripting, XSS It has been discovered, that TYPO3 is susceptible to Cross-Site Scripting. Component Type: TYPO3 CMS Release Date: April 12, 2016 Vulnerable subcomponent: Backend Vulnerability Type: Cross-Site Scripting Affected Versions: Versions 6.2.0 to 6.2.19, 7.6.0 to 7.6.4 and 8.0.0 Severity: Medium Suggested CVSS v2.0: AV:N/AC:L/Au:S/C:P/I:P/A:N/E:P/RL:O/RC:C CVE: not assigned yet Problem Description: Failing to properly encode user input, some backend components are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability. Solution: Update to TYPO3 versions 6.2.20, 7.6.5 or 8.0.1 that fix the problem described. Credits: Thanks to Georg Ringer, Nicole Cordes and Alexander Grein who discovered and reported the issues. 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. - ------------------------------------------------------------------------------- TYPO3-CORE-SA-2016-010: Arbitrary File Disclosure in Form Component April 12, 2016 Category: TYPO3 CMS Author: Helmut Hummel Keywords: Arbitrary File Disclosure, Form It has been discovered, that TYPO3 Form Component is susceptible to Arbitrary File Disclosure. Component Type: TYPO3 CMS Release Date: April 12, 2016 Vulnerable subcomponent: Form Vulnerability Type: Arbitrary File Disclosure Affected Versions: Versions 6.2.0 to 6.2.19 Severity: High Suggested CVSS v2.0: AV:N/AC:L/Au:S/C:C/I:N/A:N/E:P/RL:O/RC:C CVE: not assigned yet Problem Description: Failing to properly validate user input, the form component is susceptible to Arbitrary File Disclosure. A valid backend user account is needed to exploit this vulnerability. Only forms are vulnerable, which contain upload fields. Solution: Update to TYPO3 versions 6.2.20 that fix the problem described. Credits: Thanks to Gerrit Venema who discovered and reported the issues. 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. - ------------------------------------------------------------------------------- TYPO3-CORE-SA-2016-011: Authentication Bypass in TYPO3 CMS April 12, 2016 Category: TYPO3 CMS Author: Nicole Cordes Keywords: Authentication Bypass, Core It has been discovered, that TYPO3 CMS is vulnerable to Authentication Bypass. Component Type: TYPO3 CMS Release Date: April 12, 2016 Vulnerable subcomponent: Authentication Vulnerability Type: Authentication Bypass Affected Versions: Versions 6.2.0 to 6.2.19, 7.6.0 to 7.6.4 and 8.0.0 Severity: Medium Suggested CVSS v2.0: AV:N/AC:L/Au:S/C:P/I:P/A:N/E:P/RL:O/RC:C CVE: not assigned yet Problem Description: The default authentication service misses to invalidate empty strings as password. Therefore it is possible to authenticate backend and frontend users without password set in the database. Solution: Update to TYPO3 versions 6.2.20, 7.6.5 or 8.0.1 that fix the problem described. Note: TYPO3 does not allow to create user accounts without a password. Your TYPO3 installation might only be affected if there is a third party component creating user accounts without password by directly manipulating the database. Credits: Thanks to Kevin Ditscheid 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. - ------------------------------------------------------------------------------- TYPO3-CORE-SA-2016-012: Privilege Escalation in TYPO3 CMS April 12, 2016 Category: TYPO3 CMS Author: Helmut Hummel Keywords: Information Disclosure, Version It has been discovered, that TYPO3 CMS is vulnerable to Privilege Escalation. Component Type: TYPO3 CMS Release Date: April 12, 2016 Vulnerable subcomponent: Version Vulnerability Type: Privilege Escalation Affected Versions: Versions 6.2.0 to 6.2.19, 7.6.0 to 7.6.4 and 8.0.0 Severity: Medium Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:P/I:P/A:N/E:P/RL:O/RC:C CVE: not assigned yet Problem Description: The workspace/ version preview link created by a privileged (backend) user could be abused to obtain certain editing permission, if the admin panel is configured to be shown. A valid preview link is required to exploit this vulnerability. Solution: Update to TYPO3 versions 6.2.20, 7.6.5 or 8.0.1 that fix the problem described. Credits: Thanks to Helmut Hummel 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. ========================================================== Serveur de référence du CERT-Renater https://services.renater.fr/ssi/ ========================================================== + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: cert@support.renater.fr + ==========================================================