title: Authentication bypass vulnerability in MELSEC iQ-R Series / iQ-F Series EtherNet/IP Modules
description: Weak Password Requirements vulnerability in FTP function on Mitsubishi Electric Corporation MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP allows a remote unauthenticated attacker to access to the module via FTP by dictionary attack or password sniffing.
problem types: CWE-521 Weak Password Requirements
affected:
{
defaultStatus: unaffected
product: MELSEC iQ-R Series EtherNet/IP module RJ71EIP91
vendor: Mitsubishi Electric Corporation
versions:
status: affected, version: all versions
}
{
defaultStatus: unaffected
product: MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP
vendor: Mitsubishi Electric Corporation
versions:
status: affected, version: all versions
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL