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
Subscribe
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: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C]

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?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



###SIDEBAR###