Courier Mail Server < 0.53.2 Crafted Username Encoding DoS

high Nessus Network Monitor Plugin ID 3646

Synopsis

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

Description

The remote host is running Courier Mail Server, an open source mail server for Linux and Unix. The installed version of Courier is prone to a flaw in the way that it handles malformed 'login' strings. Specifically, an attacker who sends a username that includes a '

Solution

Upgrade to version 0.53.2 or higher.

Plugin Details

Severity: High

ID: 3646

Family: SMTP Servers

Published: 6/12/2006

Updated: 3/6/2019

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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: 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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:double_precision_incorporated:courier_mta

Exploitable With

Metasploit (TFTP Server for Windows 1.4 ST WRQ Buffer Overflow)

Reference Information

CVE: CVE-2006-2659

BID: 18345

Detections

Analytics