Siemens SIMATIC Logon Authentication Bypass

critical Nessus Plugin ID 97666

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Synopsis

A logon service for SCADA applications running on the remote host is affected by an authentication bypass vulnerability.

Description

The Siemens SIMATIC Logon service running on the remote host is affected by an authentication bypass vulnerability that allows an unauthenticated, remote attacker to access SIMATIC applications.

Solution

Upgrade to SIMATIC Logon V1.5 SP3 Update 2 or later.

Plugin Details

Severity: Critical

ID: 97666

File Name: scada_siemens_simatic_logon_auth_bypass.nbin

Version: 1.199

Type: remote

Family: SCADA

Published: 3/10/2017

Updated: 11/12/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2017-2684

CVSS v3

Risk Factor: Critical

Base Score: 9

Temporal Score: 8.1

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

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

Vulnerability Information

CPE: x-cpe:/a:siemens:simatic_logon

Required KB Items: Siemens SIMATIC Logon Service

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 2/13/2017

Vulnerability Publication Date: 2/13/2017

Reference Information

CVE: CVE-2017-2684

BID: 96208

ICSA: 17-045-03

Detections

Analytics