Description
An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow an attacker to bypass the web authentication and obtain administrative access of the device.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zyxel | USG/ZyWALL series firmware | 4.20 through 4.70 | — |
| Zyxel | USG FLEX series firmware | 4.50 through 5.20 | — |
| Zyxel | ATP series firmware | 4.32 through 5.20 | — |
| Zyxel | VPN series firmware | 4.30 through 5.20 | — |
| Zyxel | NSG series firmware | 1.20 through 1.33 Patch 4 | — |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Zyxel - Authentication Bypass http/cves/2022/CVE-2022-0342.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.