Zyxel Releases Patches for Critical Bug Affecting Business Firewall and VPN Devices
Apr 01, 2022
Networking equipment maker Zyxel has pushed security updates for a critical vulnerability affecting some of its business firewall and VPN products that could enable an attacker to take control of the devices. "An authentication bypass vulnerability caused by the lack of a proper access control mechanism has been found in the CGI program of some firewall versions," the company said in an advisory published this week. "The flaw could allow an attacker to bypass the authentication and obtain administrative access to the device." The flaw has been assigned the identifier CVE-2022-0342 and is rated 9.8 out of 10 for severity. Credited with reporting the bug are Alessandro Sgreccia from Tecnical Service Srl and Roberto Garcia H and Victor Garcia R from Innotec Security. The following Zyxel products are impacted – USG/ZyWALL running firmware versions ZLD V4.20 through ZLD V4.70 (fixed in ZLD V4.71) USG FLEX running firmware versions ZLD V4.50 through ZLD V5.20
