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CVE-2020-29583 - Zyxel Multiple Products

AI Vulnerability Context

Firmware version 4.60 of Zyxel USG devices contains an undocumented account (zyfwp) with an unchangeable password. The password for this account can be found in cleartext in the firmware. This account can be used by someone to login to the ssh server or web interface with admin privileges.

Overview

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CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.

Vulnerability status

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CISA KEVCRITICAL
CVE ID
CVE-2020-29583
Vendor/project
Zyxel
Product
Multiple Products
Vulnerability name
Zyxel Multiple Products Use of Hard-Coded Credentials Vulnerability
Date added
2021-11-03
Due date
2022-05-03
Known ransomware campaign use
Unknown
CVSS v3
9.8
CWE-522

Exploit context

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No description available. The source record only contains identifiers and metadata.

Related AI techniques

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No related AI attack methods. No AI attack method is connected to this vulnerability in the current data.

Related case studies

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No related case studies. No case study currently mentions this vulnerability.

Source evidence

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Original source

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NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2020-29583CVE API docshttps://nvd.nist.gov/developers/vulnerabilitiesData feedshttps://nvd.nist.gov/vuln/data-feedsCataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogData repositoryhttps://github.com/cisagov/kev-dataaf854a3a-2127-422b-91ae-364da2661108http://ftp.zyxel.com/USG40/firmware/USG40_4.60%28AALA.1%29C0_2.pdfaf854a3a-2127-422b-91ae-364da2661108https://businessforum.zyxel.com/discussion/5252/zld-v4-60-revoke-and-wk48-firmware-releaseaf854a3a-2127-422b-91ae-364da2661108https://businessforum.zyxel.com/discussion/5254/whats-new-for-zld4-60-patch-1-available-on-dec-15af854a3a-2127-422b-91ae-364da2661108https://www.eyecontrol.nl/blog/undocumented-user-account-in-zyxel-products.htmlaf854a3a-2127-422b-91ae-364da2661108https://www.secpod.com/blog/a-secret-zyxel-firewall-and-ap-controllers-could-allow-for-administrative-access-cve-2020-29583/af854a3a-2127-422b-91ae-364da2661108https://www.zyxel.com/support/CVE-2020-29583.shtmlaf854a3a-2127-422b-91ae-364da2661108https://www.zyxel.com/support/security_advisories.shtml134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-29583