Siemens SCALANCE W1750D, M800, S615, and RUGGEDCOM RM1224 Improper Restriction of Operations Within the Bounds of a Memory Buffer (CVE-2017-14491)

critical Tenable OT Security Plugin ID 500978

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Siemens reports they are preparing updates for the affected products and recommends the following mitigations until patches are available:

- For SCALANCE W1750D: Siemens recommends that users install v6.5.1.5-4.3.1.8 of the software. Users who do not use the “OpenDNS,” “Captive Portal,” or “URL redirection” functionalities can deploy firewall rules in the device configuration to block incoming access to Port 53/UDP.
- For SCALANCE M800/S615: Siemens recommends that users install v5.0 of the software. Alternatively, users can disable DNS proxy in the device configuration (System - DNS - DNS Proxy - Disable Checkbox for Enable DNS Proxy) and configure the connected devices in the internal network to use a different DNS server.

- For RUGGEDCOM RM1224 update to v5.0 or later version.

- Apply defense-in-depth

Siemens has produced advisory SSA-689071 to address these vulnerabilities.

Plugin Details

Severity: Critical

ID: 500978

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 4/11/2023

Updated: 9/4/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

CVSS Score Source: CVE-2017-14491

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:siemens:scalance_m-800_series_firmware, cpe:/o:siemens:scalance_w1750d_firmware, cpe:/o:siemens:scalance_s615_firmware, cpe:/o:siemens:ruggedcom_rm1224_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/4/2017

Vulnerability Publication Date: 10/4/2017

Exploitable With

Core Impact

Reference Information

CVE: CVE-2017-14491

CWE: 787

DSA: DSA-3989

FEDORA: FEDORA-2017-24f067299e, FEDORA-2017-515264ae24, FEDORA-2017-7106a157f5

GLSA: GLSA-201710-27

ICSA: 17-332-01

RHSA: RHSA-2017:2836, RHSA-2017:2837, RHSA-2017:2838, RHSA-2017:2839, RHSA-2017:2840, RHSA-2017:2841

SuSE: SUSE-SU-2017:2616, SUSE-SU-2017:2617, SUSE-SU-2017:2619, openSUSE-SU-2017:2633

USN: USN-3430-1, USN-3430-2, USN-3430-3

Detections

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