// For flags

CVE-2021-28918

nodejs-netmask: improper input validation of octal input data

Severity Score

9.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Improper input validation of octal strings in netmask npm package v1.0.6 and below allows unauthenticated remote attackers to perform indeterminate SSRF, RFI, and LFI attacks on many of the dependent packages. A remote unauthenticated attacker can bypass packages relying on netmask to filter IPs and reach critical VPN or LAN hosts.

Una comprobación inapropiada de entrada de cadenas octales en el paquete netmask npm versiones v1.0.6 y anteriores, permite a atacantes remotos no autenticados llevar a cabo ataques de tipo SSRF, RFI y LFI indeterminados en muchos de los paquetes dependientes. Un atacante remoto no autenticado puede omitir unos paquetes que dependen de la máscara de red para filtrar las direcciones IP y llegar a hosts críticos de VPN o LAN.

A flaw was found in nodejs-netmask. Octal input data may lead to a server-side request forgery, remote file inclusion, local file inclusion, and other vulnerabilities. The highest threat from this vulnerability is to data integrity.

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
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-19 CVE Reserved
  • 2021-04-01 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2025-02-20 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-704: Incorrect Type Conversion or Cast
  • CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
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"
<= 1.0.6
Search vendor "Netmask Project" for product "Netmask" and version " <= 1.0.6"
node.js
Affected