Siemens SCALANCE W1750D Exposure of Sensitive Information to an Unauthorized Actor (CVE-2018-7083)

high Tenable OT Security Plugin ID 501016

Synopsis

The remote OT asset is affected by a vulnerability.

Description

If a process running within Aruba Instant crashes, it may leave behind a core dump, which contains the memory contents of the process at the time it crashed. It was discovered that core dumps are stored in a way that unauthenticated users can access them through the Aruba Instant web interface. Core dumps could contain sensitive information such as keys and passwords. Workaround: Block access to the Aruba Instant web interface from all untrusted users. Resolution: Fixed in Aruba Instant 4.2.4.12, 6.5.4.11, 8.3.0.6, and 8.4.0.0

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Solution

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

Siemens recommends users upgrade to Version 8.4.0.1 or later, which can be downloaded from the following link:

https://support.industry.siemens.com/cs/us/en/view/109766816/

Siemens has identified the following specific workarounds and mitigations that users can apply to reduce the risk:

- Restrict access to the web-based management interface to the internal or VPN network.
- Do not browse other websites and do not click on external links while being authenticated to the administrative web interface.
- Apply appropriate strategies for mitigation.

As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for industrial security, and following the recommendations in the product manuals.

Additional information on Industrial Security by Siemens can be found at:

https://www.siemens.com/industrialsecurity

For more information on these vulnerabilities and associated software updates, please see Siemens security advisory SSA-549547 on their website:

https://www.siemens.com/cert/advisories

Plugin Details

Severity: High

ID: 501016

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 4/11/2023

Updated: 7/24/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2018-7083

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:siemens:scalance_w1750d_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 5/10/2019

Vulnerability Publication Date: 5/10/2019

Reference Information

CVE: CVE-2018-7083

CWE: 200

Detections

Analytics