Password Generation Flaw in Zyxel NAS and NSA Products
CVE-2020-13365

8.4HIGH

Key Information:

Vendor

Zyxel
Status
Nas326 Firmware
Vendor
CVE Published:
6 August 2020

What is CVE-2020-13365?

A vulnerability in select Zyxel NAS and NSA series products allows non-root users to generate a password for an undocumented user account. This account enables unauthorized root access through TELNET sessions, posing significant security risks. The affected versions include multiple models such as NAS520, NAS542, NSA325, NSA310, and others, leading to potential unauthorized control of these devices. Users are urged to review their security measures and apply necessary patches as recommended by Zyxel.

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References

https://www.zyxel.com/us/en/support/security_advisories.s...
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https://www.zyxel.com/support/Zyxel-security-advisory-for...
x_refsource_MISC

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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