2019-dec sec release post-announcement#2838
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@nodejs/tsc @nodejs/security |
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Trott
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cjihrig
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Co-Authored-By: Colin Ihrig <cjihrig@gmail.com>
Co-Authored-By: Colin Ihrig <cjihrig@gmail.com>
Co-Authored-By: Colin Ihrig <cjihrig@gmail.com>
Co-Authored-By: Colin Ihrig <cjihrig@gmail.com>
Co-Authored-By: Colin Ihrig <cjihrig@gmail.com>
Co-Authored-By: Colin Ihrig <cjihrig@gmail.com>
evilpacket
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Dec 18, 2019
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| ### Arbitrary File Write | ||
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| Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. It fails to prevent access to folders outside of the intended `node_modules` folder through the `bin` field. A properly constructed entry in the package.json `bin` field would allow a package publisher to modify and/or gain access to arbitrary files on a user’s system when the package is installed. It is only possible to affect files that the user running `npm install` has access to. |
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A slight clarification: It is not possibly to overwrite files or modify files. You are only able to places files in locations that already do not exist. It is not possible to "gain access to arbitrary files" this is all about writing.
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@evilpacket This is verbatim copied from the npm vulnerability report, the link to which is provided a few lines down. Please provide this feedback to npm, inc.
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Note that vulnerability descriptions are verbatim from the npm vulnerability descriptions.