Rapid7 Vulnerability & Exploit Database

SMTP server VRFY Vulnerability

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SMTP server VRFY Vulnerability

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
11/01/2004
Created
07/25/2018
Added
11/01/2004
Modified
12/04/2013

Description

The SMTP "VRFY" command allows you to verify whether a the system can deliver mail to a particular user. The "VRFY" command can be used by attackers to learn about valid usernames on the target system.

Solution(s)

  • smtp-disable-expn-vrfy

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