Sendmail 'decode' Alias Arbitrary File Overwrite

Medium Nessus Network Monitor Plugin ID 2026

Synopsis

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

Description

The remote Sendmail server may pipe email sent to the 'decode' alias to a program, which is prone to various security issues.

Solution

Remove the 'decode' entry from /etc/aliases.

Plugin Details

Severity: Medium

ID: 2026

File Name: 2026.prm

Family: SMTP Servers

Published: 2004/08/18

Modified: 2016/01/30

Dependencies: 2046

Nessus ID: 10248

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

Temporal Score: 4.4

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

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

CVSSv3

Base Score: 5.8

Temporal Score: 5.6

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

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Reference Information

CVE: CVE-1999-0096

OSVDB: 196