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.
CVE-2021-29418 - Medium 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: - snyk-1.278.1.tgz (Root Library) - proxy-agent-3.1.1.tgz - pac-proxy-agent-3.0.1.tgz - pac-resolver-3.0.0.tgz - :x: **netmask-1.0.6.tgz** (Vulnerable Library)
Found in HEAD commit: 3f4c2902a45eb04bc7915c408df14545aa90511c
Found in base branch: master
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.
Publish Date: 2021-03-30
URL: CVE-2021-29418
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: Low - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://vuln.ryotak.me/advisories/6.txt
Release Date: 2021-03-30
Fix Resolution (netmask): 2.0.1
Direct dependency fix Resolution (snyk): 1.518.0
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