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unzipper@0.12.3

Unzip cross-platform streaming API

  • latest version

    0.12.5

  • first published

    10 years ago

  • latest version published

    2 months ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the unzipper package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
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    Arbitrary File Write via Archive Extraction (Zip Slip)

    unzipper is a library for the Uzip cross-platform streaming AP.I

    Affected versions of this package are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) in the extraction path validation in lib/extract.js and lib/Open/directory.js, which check only that the resolved path begins with the destination string (extractPath.indexOf(opts.path) != 0) without enforcing a directory-separator boundary. An attacker can write files outside the intended extraction directory, enabling file overwrite or code execution, by supplying a ZIP archive whose entry resolves to a sibling path such as /tmp/dest-evil/escaped.txt that shares the destination's string prefix, which a victim then extracts. Exploitation requires the victim to extract an untrusted archive with unzipper, and it works through sibling-prefix paths since standard ../../ traversal remains blocked.

    Note: This is a bypass of the fix for the vulnerability described in CVE-2018-1002203.

    How to fix Arbitrary File Write via Archive Extraction (Zip Slip)?

    There is no fixed version for unzipper.

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