Arbitrary File Creation/Overwrite due to insufficient absolute path sanitization
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 7 fixed, 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| npm | node-tar | before 3.2.2; 4.0.0 to before 4.4.14; 5.0.0 to before 5.0.6; 6.0.0 to before 6.1.1 | 3.2.2, 4.4.14, 5.0.6, 6.1.1 | Patch available | CNA |
| — | tar (npm) | before 3.2.2 | 3.2.2 | Patch available | GHSA-3jfq-g458-7qm9 |
| — | tar (npm) | 4.0.0 to before 4.4.14 | 4.4.14 | Patch available | GHSA-3jfq-g458-7qm9 |
| — | tar (npm) | 5.0.0 to before 5.0.6 | 5.0.6 | Patch available | GHSA-3jfq-g458-7qm9 |
| — | tar (npm) | 6.0.0 to before 6.1.1 | 6.1.1 | Patch available | GHSA-3jfq-g458-7qm9 |
- node-tar Vendornpm Affected before 3.2.2; 4.0.0 to before 4.4.14; 5.0.0 to before 5.0.6; 6.0.0 to before 6.1.1 Fixed in 3.2.2, 4.4.14, 5.0.6, 6.1.1 Patch available CNA
- tar (npm) Vendor— Affected before 3.2.2 Fixed in 3.2.2 Patch available GHSA-3jfq-g458-7qm9
- tar (npm) Vendor— Affected 4.0.0 to before 4.4.14 Fixed in 4.4.14 Patch available GHSA-3jfq-g458-7qm9
- tar (npm) Vendor— Affected 5.0.0 to before 5.0.6 Fixed in 5.0.6 Patch available GHSA-3jfq-g458-7qm9
- tar (npm) Vendor— Affected 6.0.0 to before 6.1.1 Fixed in 6.1.1 Patch available GHSA-3jfq-g458-7qm9
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:tar_project:tar:*:*:*:*:*:node.js:*:* | before 3.2.2; 4.0.0 to before 4.4.14; 5.0.0 to before 5.0.6; 6.0.0 to before 6.1.1 | Vulnerable | Tar Project |
| cpe:2.3:a:oracle:graalvm:20.3.3:*:*:*:enterprise:*:*:* | 20.3.3 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:graalvm:21.2.0:*:*:*:enterprise:*:*:* | 21.2.0 | Vulnerable | Oracle |
| cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:* | before 1.0.1.1 | Vulnerable | Siemens |
- cpe:2.3:a:tar_project:tar:*:*:*:*:*:node.js:*:* Versions before 3.2.2; 4.0.0 to before 4.4.14; 5.0.0 to before 5.0.6; 6.0.0 to before 6.1.1 Vulnerable ·Tar Project
- cpe:2.3:a:oracle:graalvm:20.3.3:*:*:*:enterprise:*:*:* Versions 20.3.3 Vulnerable ·Oracle
- cpe:2.3:a:oracle:graalvm:21.2.0:*:*:*:enterprise:*:*:* Versions 21.2.0 Vulnerable ·Oracle
- cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:* Versions before 1.0.1.1 Vulnerable ·Siemens
Remediation
- Fix · CNA node-tar (npm) Fixed in 3.2.2, 4.4.14, 5.0.6, 6.1.1
- Fix · GHSA-3jfq-g458-7qm9 tar (npm) Fixed in 3.2.2 Advisory →
- Fix · GHSA-3jfq-g458-7qm9 tar (npm) Fixed in 4.4.14 Advisory →
- Fix · GHSA-3jfq-g458-7qm9 tar (npm) Fixed in 5.0.6 Advisory →
- Fix · GHSA-3jfq-g458-7qm9 tar (npm) Fixed in 6.1.1 Advisory →
Red Hat 8 advisories
- RHSA-2021:5086 Released 2021-12-13 · Red Hat rating ModerateRed Hat OpenShift Data Foundation 4.9.0 enhancement, security, and bug fix update
- Red Hat OpenShift Data Foundation 4.9 on RHEL-8 odf/odf-multicluster-rhel8-operator, odf4/cephcsi-rhel8, odf4/ocs-must-gather-rhel8 +12
- RHSA-2021:4618 Released 2021-11-11 · Red Hat rating ImportantRed Hat Advanced Cluster Management 2.4 images and security updates
- Red Hat Advanced Cluster Management for Kubernetes 2.4 for RHEL 8 rhacm2/acm-grafana-rhel8, rhacm2/acm-must-gather-rhel8, rhacm2/acm-operator-bundle +47
- RHSA-2021:3666 Released 2021-09-27 · Red Hat rating Importantnodejs:14 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:14.17.5-1.module+el8.4.0+12247+e2879e58.aarch64::nodejs:14, nodejs-1:14.17.5-1.module+el8.4.0+12247+e2879e58.ppc64le::nodejs:14, nodejs-1:14.17.5-1.module+el8.4.0+12247+e2879e58.s390x::nodejs:14 +19
Show 5 more Red Hat advisories
- RHSA-2021:3638 Released 2021-09-22 · Red Hat rating Importantnodejs:12 security and bug fix update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) nodejs-1:12.22.5-1.module+el8.2.0+12241+a3db445b.aarch64::nodejs:12, nodejs-1:12.22.5-1.module+el8.2.0+12241+a3db445b.ppc64le::nodejs:12, nodejs-1:12.22.5-1.module+el8.2.0+12241+a3db445b.s390x::nodejs:12 +19
- RHSA-2021:3639 Released 2021-09-22 · Red Hat rating Importantnodejs:12 security and bug fix update
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) nodejs-1:12.22.5-1.module+el8.1.0+12238+63fe3aec.aarch64::nodejs:12, nodejs-1:12.22.5-1.module+el8.1.0+12238+63fe3aec.ppc64le::nodejs:12, nodejs-1:12.22.5-1.module+el8.1.0+12238+63fe3aec.s390x::nodejs:12 +19
- RHSA-2021:3623 Released 2021-09-21 · Red Hat rating Importantnodejs:12 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) nodejs-1:12.22.5-1.module+el8.4.0+12242+af52a4c7.aarch64::nodejs:12, nodejs-1:12.22.5-1.module+el8.4.0+12242+af52a4c7.ppc64le::nodejs:12, nodejs-1:12.22.5-1.module+el8.4.0+12242+af52a4c7.s390x::nodejs:12 +19
- RHSA-2021:3280 Released 2021-08-26 · Red Hat rating Importantrh-nodejs14-nodejs and rh-nodejs14-nodejs-nodemon security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-nodejs14-nodejs-14.17.5-1.el7, rh-nodejs14-nodejs-devel-14.17.5-1.el7, rh-nodejs14-nodejs-docs-14.17.5-1.el7 +2
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-nodejs14-nodejs-14.17.5-1.el7, rh-nodejs14-nodejs-devel-14.17.5-1.el7, rh-nodejs14-nodejs-docs-14.17.5-1.el7 +2
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-nodejs14-nodejs-14.17.5-1.el7, rh-nodejs14-nodejs-devel-14.17.5-1.el7, rh-nodejs14-nodejs-docs-14.17.5-1.el7 +2
- RHSA-2021:3281 Released 2021-08-26 · Red Hat rating Importantrh-nodejs12-nodejs and rh-nodejs12-nodejs-nodemon security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-nodejs12-nodejs-12.22.5-1.el7, rh-nodejs12-nodejs-devel-12.22.5-1.el7, rh-nodejs12-nodejs-docs-12.22.5-1.el7 +2
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-nodejs12-nodejs-12.22.5-1.el7, rh-nodejs12-nodejs-devel-12.22.5-1.el7, rh-nodejs12-nodejs-docs-12.22.5-1.el7 +2
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-nodejs12-nodejs-12.22.5-1.el7, rh-nodejs12-nodejs-devel-12.22.5-1.el7, rh-nodejs12-nodejs-docs-12.22.5-1.el7 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Service Mesh 2.0 | Affected | No fix yet |
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift GitOps | Affected | No fix yet |
| Red Hat Openshift Container Storage 4 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:3623, RHSA-2021:3666 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.1) | Fixed | RHSA-2021:3639 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2021:3638 |
| Red Hat OpenShift Data Foundation 4.9 on RHEL-8 | Fixed | RHSA-2021:5086 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:3280, RHSA-2021:3281 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) | Fixed | RHSA-2021:3280, RHSA-2021:3281 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:3280, RHSA-2021:3281 |
Not affected: 8 products
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Fuse 7
- Red Hat Quay 3
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)
Timeline
- 2026-10-02 Threatist record created from CVE-2021-32804
- 2026-10-03 Alias added: GHSA-3jfq-g458-7qm9
References
Patch 3
Advisory 4
Sources
- CVE-2021-32804 · CVE Program
- CVE-2021-32804 · NVD
- FIRST EPSS
- GHSA-3jfq-g458-7qm9 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-32804 · Red Hat security data · CC BY 4.0
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