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HashiCorp Vault and Vault Enterprise vulnerable to user enumeration

Moderate severity GitHub Reviewed Published Aug 1, 2023 to the GitHub Advisory Database • Updated Nov 11, 2023

Package

gomod github.com/hashicorp/vault (Go)

Affected versions

< 1.13.5
= 1.14.0

Patched versions

1.13.5
1.14.1

Description

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.

References

Published by the National Vulnerability Database Jul 31, 2023
Published to the GitHub Advisory Database Aug 1, 2023
Reviewed Aug 1, 2023
Last updated Nov 11, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.049%
(20th percentile)

Weaknesses

CVE ID

CVE-2023-3462

GHSA ID

GHSA-9v3w-w2jh-4hff

Source code

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