Vulnerabilities in pkg:golang/github.com/hashicorp/vault-ssh-helper

PACKAGE
Advisory Identifier: GHSA-f9fq-vjvh-779p
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Advisory Summary

CVE-2020-24359 is a HIGH (CVSS 7.5) improper input validation vulnerability (CWE-20: Improper Input Validation) affecting Github.com/hashicorp/vault ssh helper libraries in the Go ecosystem. The issue involves improper input validation in vault-ssh-helper. Remediation is available by upgrading affected packages to version 0.2.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/hashicorp/vault-ssh-helper

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/github.com/hashicorp/vault-ssh-helper. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-f9fq-vjvh-779p CVE-2020-24359 HIGH Improper Input Validation in vault-ssh-helper

CVE-2020-24359 at a Glance

CVE Identifier CVE-2020-24359
GHSA Identifier GHSA-f9fq-vjvh-779p
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-20: Improper Input Validation
Affected Product Github.com/hashicorp/vault ssh helper
Package Ecosystem Go
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-2020-24359

To remediate this vulnerability, upgrade all affected Github.com/hashicorp/vault ssh helper dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/hashicorp/vault-ssh-helper fixed: 0.2.0 
Upgrade github.com/hashicorp/vault-ssh-helper to 0.2.0
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 github.com/hashicorp/vault-ssh-helper

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-24359, inspect your project dependencies for Github.com/hashicorp/vault ssh helper:

inspect dependencies for github.com/hashicorp/vault-ssh-helper

Analyze the terminal output to locate any version of Github.com/hashicorp/vault ssh helper in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.2.0), 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Github.com/hashicorp/vault ssh helper, 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

HashiCorp vault-ssh-helper (github.com/hashicorp/vault-ssh-helper/helper) up to and including version 0.1.6 incorrectly accepted Vault-issued SSH OTPs for the subnet in which a host's network interface was located, rather than the specific IP address assigned to that interface. Fixed in 0.2.0.

CVE-2020-24359 Affected Github.com/hashicorp/vault ssh helper Versions

1 component(s)
Fixed Versions:
0.2.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/hashicorp/vault-ssh-helper
golang/github.com/hashicorp/vault-ssh-helper
Go
< 0.2.0
0.2.0

References

NVD — CVE-2020-24359 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-24359
Security Fix Commit FIX COMMIT
https://github.com/hashicorp/vault-ssh-helper/commit/83effd08cbcbe4b993d776bd9b39465cd9e4603f
Github.com/hashicorp/vault ssh helper Source Repository REPOSITORY
https://github.com/hashicorp/vault-ssh-helper/blob/master/CHANGELOG.md#020-august-19-2020
Github.com/hashicorp/vault ssh helper Source Repository REPOSITORY
https://github.com/hashicorp/vault-ssh-helper/releases

Frequently Asked Questions

What is CVE-2020-24359?
CVE-2020-24359 is a security vulnerability in Github.com/hashicorp/vault ssh helper involving Improper Input Validation in vault-ssh-helper under CWE-20: Improper Input Validation.
Which Github.com/hashicorp/vault ssh helper versions are affected?
Affected versions include releases prior to 0.2.0 across affected packages: github.com/hashicorp/vault-ssh-helper.
What version fixes CVE-2020-24359?
Upgrading to 0.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/hashicorp/vault-ssh-helper affected?
Yes, github.com/hashicorp/vault-ssh-helper is affected in releases prior to 0.2.0. Upgrade your dependency to 0.2.0 or later.
What is the CVSS score of CVE-2020-24359?
CVE-2020-24359 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-2020-24359?
CVE-2020-24359 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Go dependencies for CVE-2020-24359?
Run the dependency tree command: 'inspect dependencies for github.com/hashicorp/vault-ssh-helper'. 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-f9fq-vjvh-779p",
  "modified" : "2023-10-02T13:57:55Z",
  "published" : "2022-02-15T01:57:18Z",
  "aliases" : [ "CVE-2020-24359" ],
  "summary" : "Improper Input Validation in vault-ssh-helper",
  "details" : "HashiCorp vault-ssh-helper (github.com/hashicorp/vault-ssh-helper/helper) up to and including version 0.1.6 incorrectly accepted Vault-issued SSH OTPs for the subnet in which a host's network interface was located, rather than the specific IP address assigned to that interface. Fixed in 0.2.0.",
  "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" : "Go",
      "name" : "github.com/hashicorp/vault-ssh-helper"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-24359"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/hashicorp/vault-ssh-helper/commit/83effd08cbcbe4b993d776bd9b39465cd9e4603f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/hashicorp/vault-ssh-helper/blob/master/CHANGELOG.md#020-august-19-2020"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/hashicorp/vault-ssh-helper/releases"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-12T20:21:27Z",
    "nvd_published_at" : null
  }
}