CVE-2021-29418

nodejs-netmask: incorrectly parses an IP address that has octal integer with invalid character

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The netmask package before 2.0.1 for Node.js mishandles certain unexpected characters in an IP address string, such as an octal digit of 9. This (in some situations) allows attackers to bypass access control that is based on IP addresses. NOTE: this issue exists because of an incomplete fix for CVE-2021-28918.

El paquete netmask versiones anteriores a 2.0.1 para Node.js, maneja inapropiadamente determinados caracteres inesperados en una cadena de direcciones IP, como un dígito octal de 9. Esto (en algunas situaciones) permite a atacantes omitir el control de acceso que es basado en direcciones IP. NOTA: este problema se presenta debido a una corrección incompleta para el CVE-2021-28918.

Red Hat Advanced Cluster Management for Kubernetes 2.3.0 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include code execution, cross site scripting, denial of service, integer overflow, and null pointer vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-29 CVE Reserved
2021-03-30 CVE Published
2024-08-03 CVE Updated
2025-02-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (5)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20210604-0001	Third Party Advisory
https://vuln.ryotak.me/advisories/6	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/rs/node-netmask/commit/3f19a056c4eb808ea4a29f234274c67bc5a848f4	2021-06-08

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2021-29418	2021-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=1944822	2021-08-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netmask Project Search vendor "Netmask Project"		Netmask Search vendor "Netmask Project" for product "Netmask"				< 2.0.1 Search vendor "Netmask Project" for product "Netmask" and version " < 2.0.1"		node.js		Affected