CVE-2023-1782: Github.com/hashicorp/nomad HashiCorp Nomad Vulnerable To Unauthenticated Vulnerability

HIGH
Advisory Identifier: GHSA-f8r8-h93m-mj77
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CVSS 8.8
CWE-862 CWE-285
Published
Advisory Summary

CVE-2023-1782 is a HIGH (CVSS 8.8) hashicorp nomad vulnerable to unauthenticated vulnerability (CWE-862: Missing Authorization) affecting Github.com/hashicorp/nomad libraries in the Go ecosystem. The issue involves hashicorp nomad vulnerable to unauthenticated client agent http request privilege escalation. Remediation is available by upgrading affected packages to version 1.5.3.

CVE-2023-1782 at a Glance

CVE Identifier CVE-2023-1782
GHSA Identifier GHSA-f8r8-h93m-mj77
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-862: Missing Authorization
Affected Product Github.com/hashicorp/nomad
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2023-1782

To remediate this vulnerability, upgrade all affected Github.com/hashicorp/nomad 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/nomad fixed: 1.5.3 
Upgrade github.com/hashicorp/nomad to 1.5.3
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/nomad

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-1782, inspect your project dependencies for Github.com/hashicorp/nomad:

inspect dependencies for github.com/hashicorp/nomad

Analyze the terminal output to locate any version of Github.com/hashicorp/nomad in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.3), 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-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Github.com/hashicorp/nomad, 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 Nomad and Nomad Enterprise versions 1.5.0 up to 1.5.2 allow unauthenticated users to bypass intended ACL authorizations for clusters where mTLS is not enabled. This issue is fixed in version 1.5.3.

CVE-2023-1782 Affected Github.com/hashicorp/nomad Versions

1 component(s)
Fixed Versions:
1.5.3
Product / Package Ecosystem Affected Versions Fixed Version
github.com/hashicorp/nomad
golang/github.com/hashicorp/nomad
Go
≥ 1.5.0
< 1.5.3
1.5.3

References

NVD — CVE-2023-1782 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-1782
discuss.hashicorp.com/t/hcsec-2023-12-nom... WEB
https://discuss.hashicorp.com/t/hcsec-2023-12-nomad-unauthenticated-client-agent-http-request-privilege-escalation/52375
Github.com/hashicorp/nomad Source Repository REPOSITORY
https://github.com/hashicorp/nomad

Frequently Asked Questions

What is CVE-2023-1782?
CVE-2023-1782 is a security vulnerability in Github.com/hashicorp/nomad involving HashiCorp Nomad vulnerable to unauthenticated client agent HTTP request privilege escalation under CWE-862: Missing Authorization.
Which Github.com/hashicorp/nomad versions are affected?
Affected versions include releases prior to 1.5.3 across affected packages: github.com/hashicorp/nomad.
What version fixes CVE-2023-1782?
Upgrading to 1.5.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/hashicorp/nomad affected?
Yes, github.com/hashicorp/nomad is affected in releases prior to 1.5.3. Upgrade your dependency to 1.5.3 or later.
What is the CVSS score of CVE-2023-1782?
CVE-2023-1782 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-1782?
CVE-2023-1782 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Go dependencies for CVE-2023-1782?
Run the dependency tree command: 'inspect dependencies for github.com/hashicorp/nomad'. 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-f8r8-h93m-mj77",
  "modified" : "2023-04-06T16:59:26Z",
  "published" : "2023-04-05T21:30:24Z",
  "aliases" : [ "CVE-2023-1782" ],
  "summary" : "HashiCorp Nomad vulnerable to unauthenticated client agent HTTP request privilege escalation",
  "details" : "HashiCorp Nomad and Nomad Enterprise versions 1.5.0 up to 1.5.2 allow unauthenticated users to bypass intended ACL authorizations for clusters where mTLS is not enabled. This issue is fixed in version 1.5.3.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/hashicorp/nomad"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.5.0"
      }, {
        "fixed" : "1.5.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.5.2"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-1782"
  }, {
    "type" : "WEB",
    "url" : "https://discuss.hashicorp.com/t/hcsec-2023-12-nomad-unauthenticated-client-agent-http-request-privilege-escalation/52375"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/hashicorp/nomad"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285", "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-04-06T16:59:26Z",
    "nvd_published_at" : "2023-04-05T20:15:00Z"
  }
}