steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Webmail | Roundcube | * | 1.1.6 (including) |
| Webmail | Roundcube | 1.2.0 (including) | 1.2.0 (including) |
| Webmail | Roundcube | 1.2.1 (including) | 1.2.1 (including) |
| Webmail | Roundcube | 1.2.2 (including) | 1.2.2 (including) |
| Roundcube | Ubuntu | esm-apps/xenial | * |
| Roundcube | Ubuntu | upstream | * |
| Roundcube | Ubuntu | xenial | * |
| Roundcube | Ubuntu | yakkety | * |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: