CVE-2017-1000026: Mixlib archive Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-98wx-cw86-c97x
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2017-1000026 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Mixlib archive libraries in the RubyGems ecosystem. The issue involves mixlib-archive path traversal vulnerability. Remediation is available by upgrading affected packages to version 0.4.0.

CVE-2017-1000026 at a Glance

CVE Identifier CVE-2017-1000026
GHSA Identifier GHSA-98wx-cw86-c97x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Mixlib archive
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2017-1000026

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

mixlib-archive fixed: 0.4.0 
Upgrade mixlib-archive to 0.4.0
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 mixlib-archive

How to Check if You Are Affected

To determine whether your application is affected by CVE-2017-1000026, inspect your project dependencies for Mixlib archive:

inspect dependencies for mixlib-archive

Analyze the terminal output to locate any version of Mixlib archive in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.4.0), 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 Mixlib archive, 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

Chef Software's mixlib-archive versions 0.3.0 and older are vulnerable to a directory traversal attack allowing attackers to overwrite arbitrary files by using `..` in tar archive entries

CVE-2017-1000026 Affected Mixlib archive Versions

1 component(s)
Fixed Versions:
0.4.0
Product / Package Ecosystem Affected Versions Fixed Version
mixlib-archive
gem/mixlib-archive
RubyGems
< 0.4.0
0.4.0

References

NVD — CVE-2017-1000026 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000026
Mixlib archive Source Repository REPOSITORY
https://github.com/chef/mixlib-archive/pull/6
Mixlib archive Source Repository REPOSITORY
https://github.com/chef/mixlib-archive
Mixlib archive Source Repository REPOSITORY
https://github.com/chef/mixlib-archive/blob/master/CHANGELOG.md
Mixlib archive Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/mixlib-archive/CVE-2017-1000026.yml

Frequently Asked Questions

What is CVE-2017-1000026?
CVE-2017-1000026 is a security vulnerability in Mixlib archive involving mixlib-archive Path Traversal vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Mixlib archive versions are affected?
Affected versions include releases prior to 0.4.0 across affected packages: mixlib-archive.
What version fixes CVE-2017-1000026?
Upgrading to 0.4.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mixlib-archive affected?
Yes, mixlib-archive is affected in releases prior to 0.4.0. Upgrade your dependency to 0.4.0 or later.
What is the CVSS score of CVE-2017-1000026?
CVE-2017-1000026 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2017-1000026?
CVE-2017-1000026 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 RubyGems dependencies for CVE-2017-1000026?
Run the dependency tree command: 'inspect dependencies for mixlib-archive'. 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-98wx-cw86-c97x",
  "modified" : "2023-01-27T00:00:17Z",
  "published" : "2022-05-13T01:10:26Z",
  "aliases" : [ "CVE-2017-1000026" ],
  "summary" : "mixlib-archive Path Traversal vulnerability",
  "details" : "Chef Software's mixlib-archive versions 0.3.0 and older are vulnerable to a directory traversal attack allowing attackers to overwrite arbitrary files by using `..` in tar archive entries",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "mixlib-archive"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.4.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-1000026"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chef/mixlib-archive/pull/6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/chef/mixlib-archive"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chef/mixlib-archive/blob/master/CHANGELOG.md"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/mixlib-archive/CVE-2017-1000026.yml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-27T00:00:17Z",
    "nvd_published_at" : "2017-07-17T13:18:00Z"
  }
}