ZyNOS
ZyNOS is the proprietary operating system used on network devices made by the ZyXEL Communications Corporation.[1] The name is a contraction of ZyXEL and Network Operating System (NOS).
History
The ZyXEL Communications Corporation first introduced ZyNOS in 1998.[2]
Versions
ZyXEL released ZyNOS version 4.0 for their GS2200 series 24 and 48 port ethernet switches in April, 2012.[3] It appears that versions differ between ZyXEL products.
Access methods
Web and/or command line interface (CLI) depending on the device. Web access is accomplished by connecting an ethernet cable between a PC and an open port on the device and entering the IP address of the device into the Web browser.[4] An RS-232 serial console port is provided on some devices for CLI access, which is accomplished by using SSH or telnet.[5]
CLI command types
Listed below are the categories that the CLI commands are grouped by.[6]
Web Configurator
The Web Configurator is divided into the following categories:[7][4]
- basic settings
- advanced application
- IP application
- management
Security advisories
As of March 2014[update], Danish computer security company Secunia reports no unpatched advisories or vulnerabilities on ZyNOS version 4.x.[8]
As of March 2014[update], Secunia reports seven advisories and six vulnerabilities on ZyNOS version 3.x. Five advisories are unpatched; Secunia rates the most severe unpatched advisory as less critical.[9]
As of January 2015[update], a DNS vulnerability has been found in certain ZyNOS firmware versions. The versions that are affected have not been narrowed down. The attack can be done from a remote location regardless if the user interface is accessible from the outside of a LAN. [10]
References
- ^ Mickey Tseng. "ZyNOS General FAQ". Zyxeltech.de. Retrieved 2014-03-07.
- ^ "Timeline". Archived from the original on May 31, 2012. Retrieved June 6, 2012.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ "ZYXEL LAUNCHES IPv6 UPGRADE FOR BUSINESS SECURITY GATEWAYS AND ETHERNET SWITCHES". Archived from the original on May 12, 2012. Retrieved June 6, 2012.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ a b "ZyBook2.book" (PDF). Retrieved 2014-03-07.
- ^ "Ethernet Switch Reference Guide V3.90 (Nov 2008)" (PDF). Retrieved 2014-03-07.
- ^ Mickey Tseng. "ZyNOS CI Command List". Zyxeltech.de. Retrieved 2014-03-07.
- ^ ftp://ftp2.zyxel.com/GS2200-24P/user_guide/GS2200-24P_4.00_ed1.pdf
- ^ "ZyXEL ZyNOS 4.x". Secunia. Retrieved 2014-03-07.
- ^ "ZyXEL ZyNOS 3.x". Secunia. Retrieved 2014-03-07.
- ^ "DNS hijacking flaw affects D-Link DSL router, possibly other devices". Lucian Constantin. Retrieved 2015-01-30.