Multiple vulnerabilities were found in Drupal 7 and Drupal 8.
Affected versions: Drupal 7.x before 7.57, Drupal 8.x before 8.4.5
Comment reply form allows access to restricted content - Critical - Drupal 8
Users with permission to post comments are able to view content and comments they do not have access to, and are also able to add comments to this content.
This vulnerability is mitigated by the fact that the comment system must be enabled and the attacker must have permission to post comments.
The PHP functions which Drupal provides for HTML escaping are not affected.
Private file access bypass - Moderately Critical - Drupal 7
When using Drupal's private file system, Drupal will check to make sure a user has access to a file before allowing the user to view or download it. This check fails under certain conditions in which one module is trying to grant access to the file and another is trying to deny it, leading to an access bypass vulnerability.
This vulnerability is mitigated by the fact that it only occurs for unusual site configurations.
jQuery vulnerability with untrusted domains - Moderately Critical - Drupal 7
A jQuery cross site scripting vulnerability is present when making Ajax requests to untrusted domains. This vulnerability is mitigated by the fact that it requires contributed or custom modules in order to exploit.
For Drupal 8, this vulnerability was already fixed in Drupal 8.4.0 in the Drupal core upgrade to jQuery 3. For Drupal 7, it is fixed in the current release (Drupal 7.57) for jQuery 1.4.4 (the version that ships with Drupal 7 core) as well as for other newer versions of jQuery that might be used on the site, for example using the jQuery Update module.
Language fallback can be incorrect on multilingual sites with node access restrictions - Moderately Critical - Drupal 8
When using node access controls with a multilingual site, Drupal marks the untranslated version of a node as the default fallback for access queries. This fallback is used for languages that do not yet have a translated version of the created node. This can result in an access bypass vulnerability.
This issue is mitigated by the fact that it only applies to sites that a) use the Content Translation module; and b) use a node access module such as Domain Access which implement hook_node_access_records().
Note that the update will mark the node access tables as needing a rebuild, which will take a long time on sites with a large number of nodes.
Settings Tray access bypass - Moderately Critical - Drupal 8
The Settings Tray module has a vulnerability that allows users to update certain data that they do not have the permissions for.
If you have implemented a Settings Tray form in contrib or a custom module, the correct access checks should be added. This release fixes the only two implementations in core, but does not harden against other such bypasses.
This vulnerability can be mitigated by disabling the Settings Tray module.
External link injection on 404 pages when linking to the current page - Less Critical - Drupal 7
Drupal core has an external link injection vulnerability when the language switcher block is used. A similar vulnerability exists in various custom and contributed modules. This vulnerability could allow an attacker to trick users into unwillingly navigating to an external site.
Created drupal7 tracking bugs for this issue:
Affects: epel-all [bug 1548324]
Affects: fedora-all [bug 1548326]
Created drupal8 tracking bugs for this issue:
Affects: fedora-all [bug 1548325]
CVEs were assigned for these issues.
Comment reply form allows access to restricted content - Critical - Drupal 8 - CVE-2017-6926
Private file access bypass - Moderately Critical - Drupal 7 - CVE-2017-6928
jQuery vulnerability with untrusted domains - Moderately Critical - Drupal 7 - CVE-2017-6929
Language fallback can be incorrect on multilingual sites with node access restrictions - Moderately Critical - Drupal 8 - CVE-2017-6930
Settings Tray access bypass - Moderately Critical - Drupal 8 - CVE-2017-6931
External link injection on 404 pages when linking to the current page - Less Critical - Drupal 7 - CVE-2017-6932
drupal6-6.38-2.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.
Closing this tracking bug because all dependent bugs have been closed and the following error occurs when requesting the reporter to close this bug:
> You can't ask Adam Mariš <email@example.com> because that account is disabled.