Detections
Analytics

Hirschmann HiOS Switches Improper Authentication (CVE-2021-27734)

critical Tenable OT Security Plugin ID 502264

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Hirschmann HiOS 07.1.01, 07.1.02, and 08.1.00 through 08.5.xx and HiSecOS 03.3.00 through 03.5.01 allow remote attackers to change the credentials of existing users.

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

Solution

Refer to the vendor advisory.

See Also

http://www.nessus.org/u?4917ec80

Plugin Details

Severity: Critical

ID: 502264

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 6/10/2024

Updated: 6/11/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2021-27734

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:belden:hirschmann_hios:07.1.02, cpe:/o:belden:hirschmann_hios, cpe:/o:belden:hisecos, cpe:/o:belden:hirschmann_hios:07.1.01

Required KB Items: Tenable.ot/Hirschmann

Exploit Ease: No known exploits are available

Patch Publication Date: 5/17/2021

Vulnerability Publication Date: 5/17/2021

Reference Information

CVE: CVE-2021-27734

CWE: 287