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Pr100088 Modbus Gateway Firmware CVE-2019-6527

CRITICAL
Improper Authentication (CWE-287)
2019-02-12 ics-cert@hq.dhs.gov
Authentication Bypass Pr100088 Modbus Gateway Firmware
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Feb 12, 2019 - 17:29 nvd
CRITICAL 9.8

DescriptionNVD

PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166) may allow an attacker to be able to change the password for an admin user who is currently or previously logged in, provided the device has not been restarted.

AnalysisAI

PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166) may allow an attacker to be able to change the password for an admin user who is currently or previously logged. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166) may allow an attacker to be able to change the password for an admin user who is currently or previously logged in, provided the device has not been restarted. Affected products include: Kunbus Pr100088 Modbus Gateway Firmware. Version information: Version 1.1.13166.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

More in Pr100088 Modbus Gateway Firmware

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CVE-2019-6533 CRITICAL
9.1 Feb 12

Registers used to store Modbus values can be read and written from the web interface without authentication in the PR100
CVE-2019-6531 HIGH
8.1 Apr 02

An attacker could retrieve passwords from a HTTP GET request from the Kunbus PR100088 Modbus gateway versions prior to R
CVE-2019-6549 HIGH
7.2 Feb 12

An attacker could retrieve plain-text credentials stored in a XML file on PR100088 Modbus gateway versions prior to Rele

Same weakness CWE-287 – Improper Authentication

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CVE-2019-6527 vulnerability details – vuln.today
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