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
Published Mar 28, 2022
9.8
CRITICALCVSS 3.1
EPSS 95.13%
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
-
- Version 4.32 through 5.20StatusaffectedConstraints-
- Version
-
- Version 1.20 through 1.33 Patch 4StatusaffectedConstraints-
- Version
-
- Version 4.50 through 5.20StatusaffectedConstraints-
- Version
-
- Version 4.20 through 4.70StatusaffectedConstraints-
- Version
-
- Version 4.30 through 5.20StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Zyxel | ATP series firmware | n/a |
| ||||||
| Zyxel | NSG series firmware | n/a |
| ||||||
| Zyxel | USG FLEX series firmware | n/a |
| ||||||
| Zyxel | USG/ZyWALL series firmware | n/a |
| ||||||
| Zyxel | VPN series firmware | n/a |
|
Configuration 1
- ≥ 4.20 · < 4.71
Configuration 2
- ≥ 4.20 · < 4.71
Configuration 3
- ≥ 4.20 · < 4.71
Configuration 4
- ≥ 4.20 · < 4.71
Configuration 5
- ≥ 4.20 · < 4.71
Running on/with
- n/a
Configuration 6
- ≥ 4.20 · < 4.71
Running on/with
- n/a
Configuration 7
- ≥ 4.20 · < 4.71
Running on/with
- n/a
Configuration 8
- ≥ 4.50 · ≤ 5.20
Running on/with
- n/a
Configuration 9
- ≥ 4.50 · ≤ 5.20
Running on/with
- n/a
Configuration 10
- ≥ 4.50 · ≤ 5.20
Running on/with
- n/a
Configuration 11
- ≥ 4.50 · ≤ 5.20
Running on/with
- n/a
Configuration 12
- ≥ 4.50 · ≤ 5.20
Running on/with
- n/a
Configuration 13
- ≥ 4.32 · ≤ 5.20
Configuration 14
- ≥ 4.32 · ≤ 5.20
Configuration 15
- ≥ 4.32 · ≤ 5.20
Configuration 16
- ≥ 4.32 · ≤ 5.20
Configuration 17
- ≥ 4.32 · ≤ 5.20
Configuration 18
- ≥ 4.32 · ≤ 5.20
Configuration 19
- ≥ 4.30 · < 5.21
Configuration 20
- ≥ 4.30 · < 5.21
Configuration 21
- ≥ 4.30 · < 5.21
Configuration 22
- ≥ 4.30 · < 5.21
Configuration 23
- ≥ 1.20 · < 1.33
- 1.33
- 1.33
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-15502 Advisory
- https://www.zyxel.com/support/Zyxel-security-advisory-for-authentication-bypass-vulnerability-of-firewalls.shtml x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-15502 | Advisory | |
| https://www.zyxel.com/support/Zyxel-security-advisory-for-authentication-bypass-vulnerability-of-firewalls.shtml | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.