Sendmail DEBUG Arbitrary Command Execution

Critical Nessus Network Monitor Plugin ID 2028


The remote host is vulnerable to a flaw that allows for the bypassing of authentication.


The remote Sendmail server accepts the DEBUG mode. An attacker may use it to gain a shell on this host.


Upgrade or patch according to vendor recommendations.

Plugin Details

Severity: Critical

ID: 2028

Family: SMTP Servers

Published: 2004/08/18

Updated: 2019/03/06

Dependencies: 2046

Nessus ID: 10247

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 8.7

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

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:eric_allman:sendmail

Reference Information

CVE: CVE-1999-0145, CVE-1999-0095

BID: 1, 2897