PT-2017-9644 · Mitsubishi · Melsec-Q Series Ethernet Interface Modules Qj71E71-B2+3

Vladimir Dashchenko · Published 2017-02-13 · Updated 2021-09-13 · CVE-2016-8370

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all versions Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-B5, all versions Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-B2, all versions

Description An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules where weakly encrypted passwords are transmitted to a MELSEC-Q PLC.

Recommendations For QJ71E71-100, all versions: At the moment, there is no information about a newer version that contains a fix for this vulnerability. For QJ71E71-B5, all versions: At the moment, there is no information about a newer version that contains a fix for this vulnerability. For QJ71E71-B2, all versions: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-327

Related Identifiers

CVE-2016-8370

Affected Products

Melsec-Q Plc

Melsec-Q Series Ethernet Interface Modules Qj71E71-100

Melsec-Q Series Ethernet Interface Modules Qj71E71-B2

Melsec-Q Series Ethernet Interface Modules Qj71E71-B5

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2016-8370 · Security Note
• http://securityfocus.com/bid/94632 · Note
• https://t.me/cvenotify/20736 · Telegram Post
• https://ics-cert.us-cert.gov/advisories/ICSA-16-336-03 · Note