CVE-2022-2030

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A directory traversal vulnerability caused by specific character sequences within an improperly sanitized URL was identified in some CGI programs of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.11 through 4.72, that could allow an authenticated attacker to access some restricted files on a vulnerable device.

Se identificó una vulnerabilidad de salto de directorio causada por secuencias de caracteres específicas dentro de una URL saneada inapropiadamente en algunos programas CGI de las versiones 4.50 a 5.30 del firmware Zyxel USG FLEX 100(W), versiones 4.50 a 5.30 del firmware USG FLEX 200, versiones 4.50 a 5.30 del firmware USG FLEX 500, versiones 4.50 a 5.30 del firmware USG FLEX 700. 30, firmware USG FLEX 50(W) versiones 4.16 a 5.30, firmware USG20(W)-VPN versiones 4.16 a 5.30, firmware de la serie ATP versiones 4.32 a 5.30, firmware de la serie VPN versiones 4.30 a 5.30, firmware de la serie USG/ZyWALL versiones 4.11 a 4.72, que podría permitir a un atacante autenticado acceder a algunos archivos restringidos en un dispositivo vulnerable.

*Credits: N/A

CVSS Scores

NISTv3.1 6.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-06-08 CVE Reserved
2022-07-19 CVE Published
2024-02-09 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-traversal-vulnerabilities-of-firewalls.shtml	2022-07-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zyxel Search vendor "Zyxel"	Usg Flex 100w Firmware Search vendor "Zyxel" for product "Usg Flex 100w Firmware"	>= 4.50 <= 5.30 Search vendor "Zyxel" for product "Usg Flex 100w Firmware" and version " >= 4.50 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg Flex 100w Search vendor "Zyxel" for product "Usg Flex 100w"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg Flex 200 Firmware Search vendor "Zyxel" for product "Usg Flex 200 Firmware"	>= 4.50 <= 5.30 Search vendor "Zyxel" for product "Usg Flex 200 Firmware" and version " >= 4.50 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg Flex 200 Search vendor "Zyxel" for product "Usg Flex 200"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg Flex 500 Firmware Search vendor "Zyxel" for product "Usg Flex 500 Firmware"	>= 4.50 <= 5.30 Search vendor "Zyxel" for product "Usg Flex 500 Firmware" and version " >= 4.50 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg Flex 500 Search vendor "Zyxel" for product "Usg Flex 500"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg Flex 700 Firmware Search vendor "Zyxel" for product "Usg Flex 700 Firmware"	>= 4.50 <= 5.30 Search vendor "Zyxel" for product "Usg Flex 700 Firmware" and version " >= 4.50 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg Flex 700 Search vendor "Zyxel" for product "Usg Flex 700"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg Flex 50w Firmware Search vendor "Zyxel" for product "Usg Flex 50w Firmware"	>= 4.20 <= 5.30 Search vendor "Zyxel" for product "Usg Flex 50w Firmware" and version " >= 4.20 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg Flex 50w Search vendor "Zyxel" for product "Usg Flex 50w"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg20w-vpn Firmware Search vendor "Zyxel" for product "Usg20w-vpn Firmware"	>= 4.20 <= 5.30 Search vendor "Zyxel" for product "Usg20w-vpn Firmware" and version " >= 4.20 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg20w-vpn Search vendor "Zyxel" for product "Usg20w-vpn"	-	-	Safe
Zyxel Search vendor "Zyxel"	Atp800 Firmware Search vendor "Zyxel" for product "Atp800 Firmware"	>= 4.32 <= 5.30 Search vendor "Zyxel" for product "Atp800 Firmware" and version " >= 4.32 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Atp800 Search vendor "Zyxel" for product "Atp800"	-	-	Safe
Zyxel Search vendor "Zyxel"	Atp700 Firmware Search vendor "Zyxel" for product "Atp700 Firmware"	>= 4.32 <= 5.30 Search vendor "Zyxel" for product "Atp700 Firmware" and version " >= 4.32 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Atp700 Search vendor "Zyxel" for product "Atp700"	-	-	Safe
Zyxel Search vendor "Zyxel"	Atp500 Firmware Search vendor "Zyxel" for product "Atp500 Firmware"	>= 4.32 <= 5.30 Search vendor "Zyxel" for product "Atp500 Firmware" and version " >= 4.32 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Atp500 Search vendor "Zyxel" for product "Atp500"	-	-	Safe
Zyxel Search vendor "Zyxel"	Atp200 Firmware Search vendor "Zyxel" for product "Atp200 Firmware"	>= 4.32 <= 5.30 Search vendor "Zyxel" for product "Atp200 Firmware" and version " >= 4.32 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Atp200 Search vendor "Zyxel" for product "Atp200"	-	-	Safe
Zyxel Search vendor "Zyxel"	Atp100w Firmware Search vendor "Zyxel" for product "Atp100w Firmware"	>= 4.32 <= 5.30 Search vendor "Zyxel" for product "Atp100w Firmware" and version " >= 4.32 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Atp100w Search vendor "Zyxel" for product "Atp100w"	-	-	Safe
Zyxel Search vendor "Zyxel"	Atp100 Firmware Search vendor "Zyxel" for product "Atp100 Firmware"	>= 4.32 <= 5.30 Search vendor "Zyxel" for product "Atp100 Firmware" and version " >= 4.32 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Atp100 Search vendor "Zyxel" for product "Atp100"	-	-	Safe
Zyxel Search vendor "Zyxel"	Vpn1000 Firmware Search vendor "Zyxel" for product "Vpn1000 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Vpn1000 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Vpn1000 Search vendor "Zyxel" for product "Vpn1000"	-	-	Safe
Zyxel Search vendor "Zyxel"	Vpn300 Firmware Search vendor "Zyxel" for product "Vpn300 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Vpn300 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Vpn300 Search vendor "Zyxel" for product "Vpn300"	-	-	Safe
Zyxel Search vendor "Zyxel"	Vpn100 Firmware Search vendor "Zyxel" for product "Vpn100 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Vpn100 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Vpn100 Search vendor "Zyxel" for product "Vpn100"	-	-	Safe
Zyxel Search vendor "Zyxel"	Vpn50 Firmware Search vendor "Zyxel" for product "Vpn50 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Vpn50 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Vpn50 Search vendor "Zyxel" for product "Vpn50"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg20-vpn Firmware Search vendor "Zyxel" for product "Usg20-vpn Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Usg20-vpn Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg20-vpn Search vendor "Zyxel" for product "Usg20-vpn"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg 2200-vpn Firmware Search vendor "Zyxel" for product "Usg 2200-vpn Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Usg 2200-vpn Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg 2200-vpn Search vendor "Zyxel" for product "Usg 2200-vpn"	-	-	Safe
Zyxel Search vendor "Zyxel"	Zywall 110 Firmware Search vendor "Zyxel" for product "Zywall 110 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Zywall 110 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Zywall 110 Search vendor "Zyxel" for product "Zywall 110"	-	-	Safe
Zyxel Search vendor "Zyxel"	Zywall 310 Firmware Search vendor "Zyxel" for product "Zywall 310 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Zywall 310 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Zywall 310 Search vendor "Zyxel" for product "Zywall 310"	-	-	Safe
Zyxel Search vendor "Zyxel"	Zywall 1100 Firmware Search vendor "Zyxel" for product "Zywall 1100 Firmware"	>= 4.30 <= 5.30 Search vendor "Zyxel" for product "Zywall 1100 Firmware" and version " >= 4.30 <= 5.30"	-	Affected	in	Zyxel Search vendor "Zyxel"	Zywall 1100 Search vendor "Zyxel" for product "Zywall 1100"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg40 Firmware Search vendor "Zyxel" for product "Usg40 Firmware"	>= 4.20 <= 4.72 Search vendor "Zyxel" for product "Usg40 Firmware" and version " >= 4.20 <= 4.72"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg40 Search vendor "Zyxel" for product "Usg40"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg40w Firmware Search vendor "Zyxel" for product "Usg40w Firmware"	>= 4.20 <= 4.72 Search vendor "Zyxel" for product "Usg40w Firmware" and version " >= 4.20 <= 4.72"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg40w Search vendor "Zyxel" for product "Usg40w"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg60 Firmware Search vendor "Zyxel" for product "Usg60 Firmware"	>= 4.20 <= 4.72 Search vendor "Zyxel" for product "Usg60 Firmware" and version " >= 4.20 <= 4.72"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg60 Search vendor "Zyxel" for product "Usg60"	-	-	Safe
Zyxel Search vendor "Zyxel"	Usg60w Firmware Search vendor "Zyxel" for product "Usg60w Firmware"	>= 4.20 <= 4.72 Search vendor "Zyxel" for product "Usg60w Firmware" and version " >= 4.20 <= 4.72"	-	Affected	in	Zyxel Search vendor "Zyxel"	Usg60w Search vendor "Zyxel" for product "Usg60w"	-	-	Safe