CVE-2019-1000008: Helm.sh/helm Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-xrxm-mvqm-r553
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CVSS 6.5
CWE-22
Published
Advisory Summary

CVE-2019-1000008 is a MODERATE (CVSS 6.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Helm.sh/helm libraries in the Go ecosystem. The issue involves helm path traversal. Remediation is available by upgrading affected packages to version 2.12.2.

CVE-2019-1000008 at a Glance

CVE Identifier CVE-2019-1000008
GHSA Identifier GHSA-xrxm-mvqm-r553
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Helm.sh/helm
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2019-1000008

To remediate this vulnerability, upgrade all affected Helm.sh/helm dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

helm.sh/helm fixed: 2.12.2 
Upgrade helm.sh/helm to 2.12.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for helm.sh/helm

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-1000008, inspect your project dependencies for Helm.sh/helm:

inspect dependencies for helm.sh/helm

Analyze the terminal output to locate any version of Helm.sh/helm in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.12.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Helm.sh/helm, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

All versions of Helm between Helm >=2.0.0 and < 2.12.2 contains a CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in The commands `helm fetch --untar` and `helm lint some.tgz` that can result when chart archive files are unpacked a file may be unpacked outside of the target directory. This attack appears to be exploitable via a victim must run a helm command on a specially crafted chart archive. This vulnerability appears to have been fixed in 2.12.2.

CVE-2019-1000008 Affected Helm.sh/helm Versions

1 component(s)
Fixed Versions:
2.12.2
Product / Package Ecosystem Affected Versions Fixed Version
helm.sh/helm
golang/helm.sh/helm
Go
≥ 2.0.0
< 2.12.2
2.12.2

References

NVD — CVE-2019-1000008 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1000008
Helm.sh/helm Source Repository REPOSITORY
https://github.com/helm/helm
Helm.sh/helm Security Information SECURITY
https://helm.sh/blog/helm-security-notice-2019/index.html

Frequently Asked Questions

What is CVE-2019-1000008?
CVE-2019-1000008 is a security vulnerability in Helm.sh/helm involving Helm Path Traversal under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Helm.sh/helm versions are affected?
Affected versions include releases prior to 2.12.2 across affected packages: helm.sh/helm.
What version fixes CVE-2019-1000008?
Upgrading to 2.12.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is helm.sh/helm affected?
Yes, helm.sh/helm is affected in releases prior to 2.12.2. Upgrade your dependency to 2.12.2 or later.
What is the CVSS score of CVE-2019-1000008?
CVE-2019-1000008 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2019-1000008?
CVE-2019-1000008 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Go dependencies for CVE-2019-1000008?
Run the dependency tree command: 'inspect dependencies for helm.sh/helm'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xrxm-mvqm-r553",
  "modified" : "2023-09-28T20:38:53Z",
  "published" : "2022-05-14T01:33:54Z",
  "aliases" : [ "CVE-2019-1000008" ],
  "summary" : "Helm Path Traversal",
  "details" : "All versions of Helm between Helm >=2.0.0 and < 2.12.2 contains a CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in The commands `helm fetch --untar` and `helm lint some.tgz` that can result when chart archive files are unpacked a file may be unpacked outside of the target directory. This attack appears to be exploitable via a victim must run a helm command on a specially crafted chart archive. This vulnerability appears to have been fixed in 2.12.2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "helm.sh/helm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.12.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1000008"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/helm/helm"
  }, {
    "type" : "WEB",
    "url" : "https://helm.sh/blog/helm-security-notice-2019/index.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-19T21:14:08Z",
    "nvd_published_at" : "2019-02-04T21:29:00Z"
  }
}