Directory Traversal Affecting nodejs12 package, versions <12.22.10-4.29.3


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.69% (80th percentile)

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  • Snyk IDSNYK-SLES152-NODEJS12-2642268
  • published14 Apr 2022
  • disclosed2 Mar 2022

Introduced: 2 Mar 2022

CVE-2021-32804  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 nodejs12 to version 12.22.10-4.29.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs12 package and not the nodejs12 package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

The npm package "tar" (aka node-tar) before versions 6.1.1, 5.0.6, 4.4.14, and 3.3.2 has a arbitrary File Creation/Overwrite vulnerability due to insufficient absolute path sanitization. node-tar aims to prevent extraction of absolute file paths by turning absolute paths into relative paths when the preservePaths flag is not set to true. This is achieved by stripping the absolute path root from any absolute file paths contained in a tar file. For example /home/user/.bashrc would turn into home/user/.bashrc. This logic was insufficient when file paths contained repeated path roots such as ////home/user/.bashrc. node-tar would only strip a single path root from such paths. When given an absolute file path with repeating path roots, the resulting path (e.g. ///home/user/.bashrc) would still resolve to an absolute path, thus allowing arbitrary file creation and overwrite. This issue was addressed in releases 3.2.2, 4.4.14, 5.0.6 and 6.1.1. Users may work around this vulnerability without upgrading by creating a custom onentry method which sanitizes the entry.path or a filter method which removes entries with absolute paths. See referenced GitHub Advisory for details. Be aware of CVE-2021-32803 which fixes a similar bug in later versions of tar.

CVSS Scores

version 3.1