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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1232 Drupal core - Moderately critical - Cross Site Scripting - SA-CORE-2018-003 20 April 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Drupal core Publisher: Drupal Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade Original Bulletin: https://www.drupal.org/sa-core-2018-003 - --------------------------BEGIN INCLUDED TEXT-------------------- Drupal core - Moderately critical - Cross Site Scripting - SA-CORE-2018-003 Project: Drupal core Date: 2018-April-18 Security risk: Moderately critical 12/25 AC:Complex/A:User/CI:Some/II:Some/E:Theoretical/TD:Default Vulnerability: Cross Site Scripting Description: CKEditor, a third-party JavaScript library included in Drupal core, has fixed a cross-site scripting (XSS) vulnerability. The vulnerability stemmed from the fact that it was possible to execute XSS inside CKEditor when using the image2 plugin (which Drupal 8 core also uses). We would like to thank the CKEditor team for patching the vulnerability and coordinating the fix and release process, and matching the Drupal core security window. Solution: o If you are using Drupal 8, update to Drupal 8.5.2 or Drupal 8.4.7. o The Drupal 7.x CKEditor contributed module is not affected if you are running CKEditor module 7.x-1.18 and using CKEditor from the CDN, since it currently uses a version of the CKEditor library that is not vulnerable. o If you installed CKEditor in Drupal 7 using another method (for example with the WYSIWYG module or the CKEditor module with CKEditor locally) and you're using a version of CKEditor from 4.5.11 up to 4.9.1, update the third-party JavaScript library by downloading CKEditor 4.9.2 from CKEditor's site. Reported By: o Kyaw Min Thein Fixed By: o Marek Lewandowski of the CKEditor team o Wiktor Walc of the CKEditor team o Wim Leers o xjm Of the Drupal Security Team o Lee Rowlands of the Drupal Security Team o Daniel Wehner o Hai-Nam Nguyen o Matthew Grill Contact and more information The Drupal security team can be reached by email at security at drupal.org or via the contact form. Learn more about the Drupal Security team and their policies, writing secure code for Drupal, and securing your site. Follow the Drupal Security Team on Twitter @drupalsecurity - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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