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- #ROUNDCUBE WEBMAIL INSTALLER EXPLOIT INSTALL#
- #ROUNDCUBE WEBMAIL INSTALLER EXPLOIT UPDATE#
- #ROUNDCUBE WEBMAIL INSTALLER EXPLOIT SKIN#
We have the database server up and running, so we can proceed and create a database and user for Roundcube.
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It’s optional, but we strongly recommend securing your database server properly. systemctl start mariadbĪdditionally, you can run the mysql_secure_installation post installation script, to strengthen the security of the MariaDB server as well as set a password for the MariaDB root user.
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Once the database server is installed, start it and enable it to automatically start after a server reboot. The MariaDB package is available in the official Ubuntu 20.04 repository, so the installation is pretty easy. MariaDB is an open-source variant of MySQL.
#ROUNDCUBE WEBMAIL INSTALLER EXPLOIT INSTALL#
So for this purpose we will install MariaDB server. Roundcube needs a database where it will store its preferences, users, contacts and email messages (if caching is enabled). We also suggest restarting your server so that all configuration files being used are the latest version.
#ROUNDCUBE WEBMAIL INSTALLER EXPLOIT UPDATE#
Now, the first thing we should do is to make sure that all installed packages are updated to the latest available version: apt update & apt upgrade Where IP_Address and Port_Number are the actual IP address of your server and SSH port number. Login to your Ubuntu 20.04 VPS via SSH as user root ssh -p Port_Number SMTP server and IMAP server with IMAP4 rev1 support.MariaDB, MySQL, PostgreSQL, SQLite, MSSQL or Oracle database server.Apache, Nginx, Lighttpd, Cherokee or Hiawatha web server.Built-in caching for fast mailbox access.Roundcube comes with lots of handy features out of the box, such as: With all of this, let’s start our installation process. It can also run on almost all web servers and database servers. The installation of Roundcube is pretty easy and it can run on any Linux server with either a LAMP or LEMP stack. Its excellent UX makes Roundcube one of the most popular webmail solutions in the world. But this situation is very common for shared hosting servers, that host clients' websites on the same server as Roundcube.Roundcube has an intuitive and user-friendly interface translated in more than 80 languages. This vulnerability is difficult to exploit since it requires ability to create files on the web server and a valid Roundcube account.
#ROUNDCUBE WEBMAIL INSTALLER EXPLOIT SKIN#
In case, when "skin_include_php" parameter is set to true, the attacker will be able to execute arbitrary PHP code from the skin files: The following code in skin files will display database access credentials: Using specially crafted skin for Roundcube, a remote attacker can gain access to potentially sensitive information. "././") to load a new skin from arbitrary location on the system, readable by the webserver.Ī simple exploit below will send HTTP POST request to vulnerable script and will load a new skin from "/tmp" folder:Įxploitation of the vulnerability requires valid user credentials and ability to create files on vulnerable host. A remote authenticated attacker can use path traversal sequences (e.g. The vulnerability exists due to insufficient sanitization of "_skin" HTTP POST parameter in "/index.php" script when changing between different skins of the web application. Vulnerability can be exploited to gain access to sensitive information and under certain circumstances to execute arbitrary code and totally compromise the vulnerable server. High-Tech Bridge Security Research Lab discovered a path traversal vulnerability in a popular webmail client Roundcube.