Arbitrary File Overwrite Affecting tar package, versions <2.2.2 >=3.0.0 <4.4.2


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.32% (71st percentile)

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  • Snyk ID SNYK-JS-TAR-174125
  • published 7 Apr 2019
  • disclosed 4 Apr 2019
  • credit Max Justicz

How 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.

CVSS Scores

version 3.1
Expand this section

Snyk

8.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High