CVE-2021-32804
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-32804
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32804.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-32804
- Aliases
- Related
- Published
- 2021-08-03T19:15:08Z
- Modified
- 2024-09-18T03:14:40.004949Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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
preservePathsflag is not set totrue. This is achieved by stripping the absolute path root from any absolute file paths contained in a tar file. For example/home/user/.bashrcwould turn intohome/user/.bashrc. This logic was insufficient when file paths contained repeated path roots such as////home/user/.bashrc.node-tarwould 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 customonentrymethod which sanitizes theentry.pathor afiltermethod 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. - References
-
- https://github.com/npm/node-tar/security/advisories/GHSA-3jfq-g458-7qm9
- https://www.npmjs.com/advisories/1770
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://github.com/npm/node-tar/commit/1f036ca23f64a547bdd6c79c1a44bc62e8115da4
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.npmjs.com/package/tar
- https://security.alpinelinux.org/vuln/CVE-2021-32804
- https://security-tracker.debian.org/tracker/CVE-2021-32804
Affected packages
Alpine:v3.16 / tar
Package
- Name
- tar
- Purl
- pkg:apk/alpine/tar?arch=source
Alpine:v3.17 / tar
Package
- Name
- tar
- Purl
- pkg:apk/alpine/tar?arch=source
Alpine:v3.18 / tar
Package
- Name
- tar
- Purl
- pkg:apk/alpine/tar?arch=source
Alpine:v3.19 / tar
Package
- Name
- tar
- Purl
- pkg:apk/alpine/tar?arch=source
Alpine:v3.20 / tar
Package
- Name
- tar
- Purl
- pkg:apk/alpine/tar?arch=source
Debian:11 / node-tar
Package
- Name
- node-tar
- Purl
- pkg:deb/debian/node-tar?arch=source
Debian:12 / node-tar
Package
- Name
- node-tar
- Purl
- pkg:deb/debian/node-tar?arch=source
Debian:13 / node-tar
Package
- Name
- node-tar
- Purl
- pkg:deb/debian/node-tar?arch=source
Git / github.com/isaacs/node-tar
Affected ranges
- Type
- GIT
- Repo
- https://github.com/isaacs/node-tar
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- GIT
- Repo
- https://github.com/npm/hosted-git-info
- Events
- Type
- GIT
- Repo
- https://github.com/npm/node-tar
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed