CVE Catalog

CVE-2001-1135

High
Published: Translated: NVD NIST

Summary

ZyXEL Prestige 642R and 642R-I routers do not filter the Telnet and FTP ports on the external WAN interface from inside access, allowing someone on an internal computer to reconfigure the router if the password is known.

Risk Assessment

The ability for internal users to unauthorizedly change the router's configuration poses a significant security risk to the organization's network.

Recommendation

It is recommended to block access to Telnet and FTP ports from the internal network or to implement stronger authentication mechanisms.

Related vulnerabilities

Original NVD description (English source)

ZyXEL Prestige 642R and 642R-I routers do not filter the routers' Telnet and FTP ports on the external WAN interface from inside access, allowing someone on an internal computer to reconfigure the router, if the password is known.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS