CVE-2018-9846 Information

Description

In Roundcube from versions 1.2.0 to 1.3.5 with the archive plugin enabled and configured it’s possible to exploit the unsanitized user-controlled _uid\ parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a 0d0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/roundcube/roundcubemail/issues/6229 https://github.com/roundcube/roundcubemail/issues/6238 https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a https://www.debian.org/security/2018/dsa-4181

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8