Sendmail < 8.10.1 ETRN Command Remote DoS

High Nessus Network Monitor Plugin ID 2024

Synopsis

The remote host is vulnerable to a Denial of Service (DoS) attack.

Description

The remote SMTP server has a flaw that may allow remote attackers to cause a denial of service by sending a series of ETRN commands and then disconnecting from this server.

Solution

Upgrade to Sendmail 8.10.1 or higher.

Plugin Details

Severity: High

ID: 2024

Family: SMTP Servers

Published: 2004/08/18

Modified: 2018/09/16

Dependencies: 2046

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.8

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:W/RC:ND

CVSSv3

Base Score: 7.5

Temporal Score: 6.6

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS3#E:U/RL:W/RC:X

Vulnerability Information

CPE: cpe:/a:sendmail:sendmail

Reference Information

CVE: CVE-1999-1109

BID: 904