Arbitrary File Overwrite Affecting tar Open this link in a new tab package, versions <2.2.2 >=3.0.0 <4.4.2
Exploit Maturity
Proof of concept
Attack Complexity
High
Confidentiality
High
Integrity
High
Availability
High
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snyk-id
SNYK-JS-TAR-174125
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published
7 Apr 2019
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disclosed
4 Apr 2019
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credit
Max Justicz
Introduced: 4 Apr 2019
CVE-2018-20834 Open this link in a new tabHow to fix?
Upgrade tar
to version 2.2.2, 4.4.2 or higher.
Overview
tar is a full-featured Tar for Node.js.
Affected versions of this package are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hard-link to a file that already exists in the system, and a file that matches the hard-link may overwrite system's files with the contents of the extracted file.