CVE-2023-3462: Github.com/hashicorp/vault HashiCorp Vault And Vault Enterprise Vulnerability

MODERATE
Advisory Identifier: GHSA-9v3w-w2jh-4hff
CVSS 5.3
CWE-203
Published
Advisory Summary

CVE-2023-3462 is a MODERATE (CVSS 5.3) hashicorp vault and vault enterprise vulnerability (CWE-203: Observable Discrepancy) affecting Github.com/hashicorp/vault libraries in the Go ecosystem. The issue involves hashicorp vault and vault enterprise vulnerable to user enumeration. Remediation is available by upgrading affected packages to version 1.13.5, 1.14.1.

CVE-2023-3462 at a Glance

CVE Identifier CVE-2023-3462
GHSA Identifier GHSA-9v3w-w2jh-4hff
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-203: Observable Discrepancy
Affected Product Github.com/hashicorp/vault
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-3462

To remediate this vulnerability, upgrade all affected Github.com/hashicorp/vault 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 fixed: 1.13.5
Upgrade github.com/hashicorp/vault to 1.13.5
github.com/hashicorp/vault fixed: 1.14.1
Upgrade github.com/hashicorp/vault to 1.14.1
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

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-3462, inspect your project dependencies for Github.com/hashicorp/vault:

inspect dependencies for github.com/hashicorp/vault

Analyze the terminal output to locate any version of Github.com/hashicorp/vault in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.13.5), 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-203: Observable Discrepancy, where the product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor. In Github.com/hashicorp/vault, 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's Vault and Vault Enterprise are vulnerable to user enumeration when using the LDAP auth method. An attacker may submit requests of existent and non-existent LDAP users and observe the response from Vault to check if the account is valid on the LDAP server. This vulnerability is fixed in Vault 1.14.1 and 1.13.5.

CVE-2023-3462 Affected Github.com/hashicorp/vault Versions

2 component(s)
Fixed Versions:
1.13.51.14.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/hashicorp/vault
Go
< 1.13.5
1.13.5
github.com/hashicorp/vault
Go
≥ 1.14.0
< 1.14.1
All 1 versions
1.14.0
1.14.1

References

Frequently Asked Questions

What is CVE-2023-3462?
CVE-2023-3462 is a security vulnerability in Github.com/hashicorp/vault involving HashiCorp Vault and Vault Enterprise vulnerable to user enumeration under CWE-203: Observable Discrepancy.
Which Github.com/hashicorp/vault versions are affected?
Affected versions include releases prior to 1.13.5, 1.14.1 across affected packages: github.com/hashicorp/vault.
What version fixes CVE-2023-3462?
Upgrading to 1.13.5, 1.14.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/hashicorp/vault affected?
Yes, github.com/hashicorp/vault is affected in releases prior to 1.13.5, 1.14.1. Upgrade your dependency to 1.13.5, 1.14.1 or later.
What is the CVSS score of CVE-2023-3462?
CVE-2023-3462 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2023-3462?
CVE-2023-3462 is classified under CWE-203: Observable Discrepancy (The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.).
How can I check Go dependencies for CVE-2023-3462?
Run the dependency tree command: 'inspect dependencies for github.com/hashicorp/vault'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9v3w-w2jh-4hff",
  "modified" : "2023-08-01T16:58:49Z",
  "published" : "2023-08-01T00:30:17Z",
  "aliases" : [ "CVE-2023-3462" ],
  "summary" : "HashiCorp Vault and Vault Enterprise vulnerable to user enumeration",
  "details" : "HashiCorp's Vault and Vault Enterprise are vulnerable to user enumeration when using the LDAP auth method. An attacker may submit requests of existent and non-existent LDAP users and observe the response from Vault to check if the account is valid on the LDAP server. This vulnerability is fixed in Vault 1.14.1 and 1.13.5.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/hashicorp/vault"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.13.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/hashicorp/vault"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.14.0"
      }, {
        "fixed" : "1.14.1"
      } ]
    } ],
    "versions" : [ "1.14.0" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-3462"
  }, {
    "type" : "WEB",
    "url" : "https://discuss.hashicorp.com/t/hcsec-2023-24-vaults-ldap-auth-method-allows-for-user-enumeration/56714"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/hashicorp/vault"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-203" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-01T16:58:49Z",
    "nvd_published_at" : "2023-07-31T23:15:10Z"
  }
}