PT-2018-14628 · Zyxel · Zyxel Vmg3312-B10B

Published 2018-10-28 · Updated 2019-10-03 · CVE-2018-18754

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions ZyXEL VMG3312-B10B version 1.00(AAPP.7)

Description The issue concerns a backdoor root account in the affected device. The account has a password hash of tTn3+Z@!Sr0O+ stored in the etc/default.cfg file.

Recommendations For ZyXEL VMG3312-B10B version 1.00(AAPP.7), consider changing the default password and restricting access to the root account as a temporary mitigation measure. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Insufficiently Protected Credentials

Weakness Enumeration

CWE-522

Related Identifiers

CVE-2018-18754

Affected Products

Zyxel Vmg3312-B10B

References · 3

• https://osv.dev/vulnerability/CVE-2018-18754 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-18754 · Security Note
• https://gist.github.com/numanturle/c99d3306e9e4e17bb2164dde363406bc · Note