A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content. A patch has been applied to node-tar v2.2.2).
CVE-2018-20834 - High Severity Vulnerability
Vulnerable Library - tar-0.1.20.tgz
tar for node
Library home page: https://registry.npmjs.org/tar/-/tar-0.1.20.tgz
Path to dependency file: /samples/SampleAlloy/modules/_protected/Shell/Shell/11.1.0.0/ClientResources/lib/xstyle/package.json
Path to vulnerable library: /samples/SampleAlloy/modules/_protected/Shell/Shell/11.1.0.0/ClientResources/lib/xstyle/node_modules/tar/package.json
Dependency Hierarchy: - intern-geezer-2.2.3.tgz (Root Library) - digdug-1.4.0.tgz - decompress-0.2.3.tgz - :x: **tar-0.1.20.tgz** (Vulnerable Library)
Found in base branch: master
Vulnerability Details
A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content. A patch has been applied to node-tar v2.2.2).
Publish Date: 2019-04-30
URL: CVE-2018-20834
CVSS 3 Score Details (7.5)
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: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16082
Release Date: 2019-04-30
Fix Resolution: 2.2.2,4.4.2
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