Description

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.

INFO

Published Date :

Sept. 3, 2024, 2:15 a.m.

Last Modified :

Dec. 13, 2024, 4:14 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2024-42057 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Zyxel zld
2 Zyxel usg_20w-vpn_firmware
3 Zyxel usg_flex_100_firmware
4 Zyxel atp100_firmware
5 Zyxel zld_firmware
6 Zyxel atp100
7 Zyxel atp200
8 Zyxel atp500
9 Zyxel atp100w
10 Zyxel atp700
11 Zyxel atp800
12 Zyxel usg_flex_100
13 Zyxel usg_flex_50
14 Zyxel usg_flex_200
15 Zyxel usg_flex_500
16 Zyxel usg_flex_700
17 Zyxel usg_flex_100w
18 Zyxel usg_flex_50w
19 Zyxel usg_20w-vpn
20 Zyxel usg_flex_100ax
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-42057.

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

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-42057 vulnerability anywhere in the article.

  • TheCyberThrone
The CyberThrone Most Exploited Vulnerabilities Top 10 – November 2024

Welcome to TheCyberThrone most exploited vulnerabilities review. This review is for the month of November 2024CVE-2024-9463: Palo Alto OS Command InjectionCVSS 3.1 Score : 9.9 CISA KEV: YesThis vuln ... Read more

Published Date: Dec 01, 2024 (2 weeks, 3 days ago)
  • Cybersecurity News
CVE-2024-11667: Critical Vulnerability in Zyxel Firewalls Actively Exploited

CERT Germany (CERT-Bund) and Zyxel have warned of actively exploiting a critical vulnerability in Zyxel firewalls. This vulnerability tracked as CVE-2024-11667, is being leveraged to deploy Helldown r ... Read more

Published Date: Nov 29, 2024 (2 weeks, 5 days ago)
  • Cybersecurity News
PHP Patches Multi Flaws, Including CVE-2024-8932 (CVSS 9.8), Urges Immediate Update

The PHP development team has released urgent security updates to address multiple vulnerabilities affecting versions prior to 8.1.31, 8.2.26, and 8.3.14. These vulnerabilities range in severity, with ... Read more

Published Date: Nov 26, 2024 (3 weeks, 1 day ago)
  • Cybersecurity News
CVE-2023-28461 (CVSS 9.8): Critical Array Networks Vulnerability Added to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added CVE-2023-28461, a high-severity security flaw impacting Array Networks AG and vxAG ArrayOS, to its Known Exploited Vulnerabil ... Read more

Published Date: Nov 26, 2024 (3 weeks, 1 day ago)
  • Cybersecurity News
7 Android & Pixel Vulnerabilities Exposed: Researcher Publishes PoC Exploits

Image: GoogleOversecured, a renowned cybersecurity firm, has unearthed seven vulnerabilities within the Android operating system and Google Pixel devices. Two of these vulnerabilities specifically end ... Read more

Published Date: Nov 26, 2024 (3 weeks, 1 day ago)
  • TheCyberThrone
HellDown Ransomware exploiting Zyxel Vulnerability

Helldown ransomware is a relatively new and evolving threat in the cybersecurity landscape. Initially targeting Windows systems, it has now expanded to attack VMware and Linux environments. This ranso ... Read more

Published Date: Nov 20, 2024 (4 weeks ago)
  • BleepingComputer
Helldown ransomware exploits Zyxel VPN flaw to breach networks

The new 'Helldown' ransomware operation is believed to target vulnerabilities in Zyxel firewalls to breach corporate networks, allowing them to steal data and encrypt devices. French cybersecurity fir ... Read more

Published Date: Nov 19, 2024 (4 weeks ago)
  • TheCyberThrone
Zyxel fixes Critical Vulnerability CVE-2024-7261

Zyxel released updates to fix a critical vulnerability that impacts 28 access points (AP) and security router version.The Zyxel vulnerability is tracked as CVE-2024-7261 CVSS score of 9.8, which is co ... Read more

Published Date: Sep 05, 2024 (3 months, 1 week ago)
  • Ars Technica
Zyxel warns of vulnerabilities in a wide range of its products

GET YER PATCHING ON — Most serious vulnerabilities carry severity ratings of 9.8 and 8.1 out of a possible 10. Getty Images Networking hardware-maker Zyxel is warning of nearly a dozen vulnerabilit ... Read more

Published Date: Sep 04, 2024 (3 months, 1 week ago)
  • The Cyber Express
High-Risk Vulnerabilities Discovered in Zyxel Firewalls: What You Need to Know

Zyxel Networks has recently issued a critical alert regarding several high-risk vulnerabilities affecting their firewall products. This warning comes as part of a broader security advisory that highli ... Read more

Published Date: Sep 04, 2024 (3 months, 2 weeks ago)
  • The Hacker News
Zyxel Patches Critical OS Command Injection Flaw in Access Points and Routers

Vulnerability / Network Security Zyxel has released software updates to address a critical security flaw impacting certain access point (AP) and security router versions that could result in the execu ... Read more

Published Date: Sep 04, 2024 (3 months, 2 weeks ago)
  • BleepingComputer
Zyxel warns of critical OS command injection flaw in routers

Zyxel has released security updates to address a critical vulnerability impacting multiple models of its business routers, potentially allowing unauthenticated attackers to perform OS command injectio ... Read more

Published Date: Sep 03, 2024 (3 months, 2 weeks ago)
  • Help Net Security
Critical flaw in Zyxel’s secure routers allows OS command execution via cookie (CVE-2024-7261)

Zyxel has patched a myriad of vulnerabilities in its various networking devices, including a critical one (CVE-2024-7261) that may allow unauthenticated attackers to execute OS commands on many Zyxel ... Read more

Published Date: Sep 03, 2024 (3 months, 2 weeks ago)

The following table lists the changes that have been made to the CVE-2024-42057 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Reanalysis by [email protected]

    Dec. 13, 2024

    Action Type Old Value New Value
    Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    Sep. 05, 2024

    Action Type Old Value New Value
    Changed Reference Type https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024 No Types Assigned https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024 Vendor Advisory
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100ax:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:zld_firmware:*:*:*:*:*:*:*:* versions from (including) 4.16 up to (excluding) 5.39 OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Sep. 03, 2024

    Action Type Old Value New Value
    Added Description 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.
    Added Reference Zyxel Corporation https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-09-03-2024 [No types assigned]
    Added CWE Zyxel Corporation CWE-78
    Added CVSS V3.1 Zyxel Corporation AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-42057 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability