Cleartext transmission of sensitive information in Mitsubishi Electric MELSEC iQ-R, iQ-F, Q, L and FX Series CPU Modules
| 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 |
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
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsMELSEC 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- cpe:2.3:h:mitsubishi_electric:melsec_iq-r_series:*:*:*:*:*:*:*:
- cpe:2.3:h:mitsubishi_electric:melsec_iq-f_series:*:*:*:*:*:*:*:
- cpe:2.3:h:mitsubishi_electric:melsec_q_series:*:*:*:*:*:*:*:
- cpe:2.3:h:mitsubishi_electric:melsec_l_series:*:*:*:*:*:*:*:
- cpe:2.3:h:mitsubishi_electric:melsec_fx_series_cpu_modules:*:*:*:*:*:*:*:
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.
