CVE-2024-42057

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an unauthenticated attacker to execute some OS commands on an affected device by sending a crafted username to the vulnerable device. Note that this attack could be successful only if the device was configured in User-Based-PSK authentication mode and a valid user with a long username exceeding 28 characters exists.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2024-07-29 CVE Reserved
2024-09-03 CVE Published
2024-09-03 CVE Updated
2024-09-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024	2024-09-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Zyxel Search vendor "Zyxel"		Atp100 Firmware Search vendor "Zyxel" for product "Atp100 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Atp100w Firmware Search vendor "Zyxel" for product "Atp100w Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Atp200 Firmware Search vendor "Zyxel" for product "Atp200 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Atp500 Firmware Search vendor "Zyxel" for product "Atp500 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Atp700 Firmware Search vendor "Zyxel" for product "Atp700 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Atp800 Firmware Search vendor "Zyxel" for product "Atp800 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg20w-vpn Firmware Search vendor "Zyxel" for product "Usg20w-vpn Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 100 Firmware Search vendor "Zyxel" for product "Usg Flex 100 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 100ax Firmware Search vendor "Zyxel" for product "Usg Flex 100ax Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 100h Firmware Search vendor "Zyxel" for product "Usg Flex 100h Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 100w Firmware Search vendor "Zyxel" for product "Usg Flex 100w Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 200 Firmware Search vendor "Zyxel" for product "Usg Flex 200 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 200h Firmware Search vendor "Zyxel" for product "Usg Flex 200h Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 500 Firmware Search vendor "Zyxel" for product "Usg Flex 500 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 500h Firmware Search vendor "Zyxel" for product "Usg Flex 500h Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 50 Firmware Search vendor "Zyxel" for product "Usg Flex 50 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 50ax Firmware Search vendor "Zyxel" for product "Usg Flex 50ax Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 50w Firmware Search vendor "Zyxel" for product "Usg Flex 50w Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 700 Firmware Search vendor "Zyxel" for product "Usg Flex 700 Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Usg Flex 700h Firmware Search vendor "Zyxel" for product "Usg Flex 700h Firmware"				*		-		Affected
Zyxel Search vendor "Zyxel"		Zld Search vendor "Zyxel" for product "Zld"				*		-		Affected