Cleartext transmission of sensitive information in Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L and FX Series CPU Modules



Published: 2020-06-24
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2020-14476
CWE-ID CWE-319
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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MELSEC iQ-R series
Hardware solutions / Routers & switches, VoIP, GSM, etc

MELSEC iQ-F series
Hardware solutions / Routers & switches, VoIP, GSM, etc

MELSEC Q series
Hardware solutions / Routers & switches, VoIP, GSM, etc

MELSEC L series
Hardware solutions / Routers & switches, VoIP, GSM, etc

MELSEC FX series
Hardware solutions / Firmware

Vendor Mitsubishi Electric

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Cleartext transmission of sensitive information

EUVDB-ID: #VU29221

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-14476

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information between the affected products and GX Works3/GX Works2. A remote attacker with ability to intercept network traffic can gain access to sensitive data, leading to unauthorized operation, and denial-of-service (DoS) attacks.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

MELSEC iQ-R series: All versions

MELSEC iQ-F series: All versions

MELSEC Q series: All versions

MELSEC L series: All versions

MELSEC FX series: All versions


CPE2.3 External links

http://ics-cert.us-cert.gov/advisories/icsa-20-175-01

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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