CVE-2019-12291: Github.com/hashicorp/consul HashiCorp Consul Incorrect Access Control Vulnerability

HIGH
Advisory Identifier: GHSA-h65h-v7fw-4p38
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CVSS 7.5
CWE-284
Published
Advisory Summary

CVE-2019-12291 is a HIGH (CVSS 7.5) hashicorp consul incorrect access control vulnerability (CWE-284: Improper Access Control) affecting Github.com/hashicorp/consul libraries in the Go ecosystem. The issue involves hashicorp consul incorrect access control vulnerability. Remediation is available by upgrading affected packages to version 1.5.1.

CVE-2019-12291 at a Glance

CVE Identifier CVE-2019-12291
GHSA Identifier GHSA-h65h-v7fw-4p38
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-284: Improper Access Control
Affected Product Github.com/hashicorp/consul
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:3.0/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-2019-12291

To remediate this vulnerability, upgrade all affected Github.com/hashicorp/consul 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/consul fixed: 1.5.1 
Upgrade github.com/hashicorp/consul to 1.5.1
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/consul

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-12291, inspect your project dependencies for Github.com/hashicorp/consul:

inspect dependencies for github.com/hashicorp/consul

Analyze the terminal output to locate any version of Github.com/hashicorp/consul in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.1), 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-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Github.com/hashicorp/consul, 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 Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured. ### Specific Go Packages Affected github.com/hashicorp/consul/acl

CVE-2019-12291 Affected Github.com/hashicorp/consul Versions

1 component(s)
Fixed Versions:
1.5.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/hashicorp/consul
golang/github.com/hashicorp/consul
Go
≥ 1.4.0
< 1.5.1
1.5.1

References

NVD — CVE-2019-12291 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12291
Github.com/hashicorp/consul Source Repository REPOSITORY
https://github.com/hashicorp/consul/issues/5888
Security Fix Commit FIX COMMIT
https://github.com/hashicorp/consul/commit/36ebca1fd0129278487c6570449bc8cc03987890
Github.com/hashicorp/consul Source Repository REPOSITORY
https://github.com/hashicorp/consul
www.hashicorp.com/blog/category/consu... WEB
https://www.hashicorp.com/blog/category/consul

Frequently Asked Questions

What is CVE-2019-12291?
CVE-2019-12291 is a security vulnerability in Github.com/hashicorp/consul involving HashiCorp Consul Incorrect Access Control vulnerability under CWE-284: Improper Access Control.
Which Github.com/hashicorp/consul versions are affected?
Affected versions include releases prior to 1.5.1 across affected packages: github.com/hashicorp/consul.
What version fixes CVE-2019-12291?
Upgrading to 1.5.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/hashicorp/consul affected?
Yes, github.com/hashicorp/consul is affected in releases prior to 1.5.1. Upgrade your dependency to 1.5.1 or later.
What is the CVSS score of CVE-2019-12291?
CVE-2019-12291 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2019-12291?
CVE-2019-12291 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check Go dependencies for CVE-2019-12291?
Run the dependency tree command: 'inspect dependencies for github.com/hashicorp/consul'. 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-h65h-v7fw-4p38",
  "modified" : "2023-09-29T16:13:11Z",
  "published" : "2023-06-09T23:23:42Z",
  "aliases" : [ "CVE-2019-12291" ],
  "summary" : "HashiCorp Consul Incorrect Access Control vulnerability",
  "details" : "HashiCorp Consul 1.4.0 through 1.5.0 has Incorrect Access Control. Keys not matching a specific ACL rule used for prefix matching in a policy can be deleted by a token using that policy even with default deny settings configured.\n\n### Specific Go Packages Affected\ngithub.com/hashicorp/consul/acl",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/hashicorp/consul"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.4.0"
      }, {
        "fixed" : "1.5.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-12291"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/hashicorp/consul/issues/5888"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/hashicorp/consul/commit/36ebca1fd0129278487c6570449bc8cc03987890"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/hashicorp/consul"
  }, {
    "type" : "WEB",
    "url" : "https://www.hashicorp.com/blog/category/consul"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-09T23:23:42Z",
    "nvd_published_at" : "2019-06-06T17:29:00Z"
  }
}