title: Weak default credential associated with TCP port 26
description: Weak Password Requirements vulnerability in Hitachi Energy FOX61x, XCM20 allows an attacker to gain unauthorized access to the Data Communication Network (DCN) routing configuration. This issue affects: Hitachi Energy FOX61x versions prior to R15A. Hitachi Energy XCM20 versions prior to R15A.
problem types: CWE-521 Weak Password Requirements
affected:
{
product: FOX61x
vendor: Hitachi Energy
versions:
lessThan: R15A, status: affected, version: R15A, versionType: custom
}
{
product: XCM20
vendor: Hitachi Energy
versions:
lessThan: R15A, status: affected, version: R15A, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9
baseSeverity: CRITICAL
confidentialityImpact: LOW
integrityImpact: HIGH
privilegesRequired: HIGH
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H
version: 3.1
]
solutions: Fixed in FOX61x R14A Hotfix or XMC20 R14A Hotfix
Fixed in FOX61x R15A or XMC20 R15A
workarounds: Recommended security practices and firewall configurations help protecting systems from attacks that originate from outside the network. Such practices include that network management systems and XMC20 networks are typically physically protected from direct access by unauthorized personnel and have no direct connections to the Internet, as well as are separated from other networks by means of a firewall system that has a minimal number of ports exposed (e.g., traffic to TCP port 26 should be blocked/dropped), and others that have to be evaluated case by case. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system.