CVE-2020-29583
Vulnerability from cvelistv5
Published
2020-12-22 00:00
Modified
2024-08-04 16:55
Severity ?
Summary
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.
References
cve@mitre.orghttp://ftp.zyxel.com/USG40/firmware/USG40_4.60%28AALA.1%29C0_2.pdfBroken Link
cve@mitre.orghttps://businessforum.zyxel.com/discussion/5252/zld-v4-60-revoke-and-wk48-firmware-releaseRelease Notes
cve@mitre.orghttps://businessforum.zyxel.com/discussion/5254/whats-new-for-zld4-60-patch-1-available-on-dec-15Release Notes
cve@mitre.orghttps://www.eyecontrol.nl/blog/undocumented-user-account-in-zyxel-products.htmlBroken Link, Third Party Advisory
cve@mitre.orghttps://www.secpod.com/blog/a-secret-zyxel-firewall-and-ap-controllers-could-allow-for-administrative-access-cve-2020-29583/Exploit, Third Party Advisory
cve@mitre.orghttps://www.zyxel.com/support/CVE-2020-29583.shtmlVendor Advisory
cve@mitre.orghttps://www.zyxel.com/support/security_advisories.shtmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://ftp.zyxel.com/USG40/firmware/USG40_4.60%28AALA.1%29C0_2.pdfBroken Link
af854a3a-2127-422b-91ae-364da2661108https://businessforum.zyxel.com/discussion/5252/zld-v4-60-revoke-and-wk48-firmware-releaseRelease Notes
af854a3a-2127-422b-91ae-364da2661108https://businessforum.zyxel.com/discussion/5254/whats-new-for-zld4-60-patch-1-available-on-dec-15Release Notes
af854a3a-2127-422b-91ae-364da2661108https://www.eyecontrol.nl/blog/undocumented-user-account-in-zyxel-products.htmlBroken Link, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.secpod.com/blog/a-secret-zyxel-firewall-and-ap-controllers-could-allow-for-administrative-access-cve-2020-29583/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.zyxel.com/support/CVE-2020-29583.shtmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.zyxel.com/support/security_advisories.shtmlVendor Advisory
Impacted products
Vendor Product Version
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog

Date added: 2021-11-03

Due date: 2022-05-03

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: https://nvd.nist.gov/vuln/detail/CVE-2020-29583

Show details on NVD website

To clipboard 

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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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