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.
CVE-2021-28918 - Critical Severity Vulnerability
Parse and lookup IP network blocks
Library home page: https://registry.npmjs.org/netmask/-/netmask-1.0.6.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/netmask/package.json
Dependency Hierarchy: - cli-6.12.1.tgz (Root Library) - superagent-proxy-2.1.0.tgz - proxy-agent-4.0.0.tgz - pac-proxy-agent-4.1.0.tgz - pac-resolver-4.1.0.tgz - :x: **netmask-1.0.6.tgz** (Vulnerable Library)
Found in base branch: master
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.
Publish Date: 2021-04-01
URL: CVE-2021-28918
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/advisories/GHSA-pch5-whg9-qr2r
Release Date: 2021-04-01
Fix Resolution (netmask): 2.0.1
Direct dependency fix Resolution (@ionic/cli): 6.12.2
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