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: 8/18/2004

Updated: 3/6/2019

Nessus ID: 11350

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.3

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:U/RL:W/RC:X

Vulnerability Information

CPE: cpe:/a:sendmail:sendmail

Reference Information

CVE: CVE-1999-1109

BID: 904