Autor: Jose Alexis Correa Valencia

Mattermost versions 10.4.x

Mattermost versions 10.4.x

Mattermost versions 10.4.x

Mattermost versions 10.4.x

Mattermost versions 10.4.x

Mattermost versions 9.11.x

An issue was discovered in OpenSlides before 4.2.5. During login at the /system/auth/login/ endpoint, the system's response times differ depending on whether a user exists in the system. The timing discrepancy stems from the omitted hashing of the password (e.g., more than 100 milliseconds).

A directory traversal issue was discovered in OpenSlides before 4.2.5. Files can be uploaded to OpenSlides meetings and organized in folders. The interface allows users to download a ZIP archive that contains all files in a folder and its subfolders. If an attacker specifies the title of a file or folder as a relative or absolute path (e.g., ../../../etc/passwd), the ZIP archive generated for download converts that title into a path. Depending on the extraction tool used by the user, this might overwrite files locally outside of the chosen directory.

An issue was discovered in OpenSlides before 4.2.5. When creating new chats via the chat_group.create action, the user is able to specify the name of the chat. Some HTML elements such as SCRIPT are filtered, whereas others are not. In most cases, HTML entities are encoded properly, but not when deleting chats or deleting messages in these chats. This potentially allows attackers to interfere with the layout of the rendered website, but it is unlikely that victims would click on deleted chats or deleted messages.

A vulnerability was found in quickjs-ng QuickJS up to 0.8.0. It has been declared as problematic. Affected by this vulnerability is the function JS_GetRuntime of the file quickjs.c of the component qjs. The manipulation leads to stack-based buffer overflow. The attack can be launched remotely. Upgrading to version 0.9.0 is able to address this issue. The patch is named 99c02eb45170775a9a679c32b45dd4000ea67aff. It is recommended to upgrade the affected component.