CVE-2022-28357: Github.com/nats io/nats server Path Traversal Vulnerability

CRITICAL
Advisory Identifier: GHSA-vpjc-4jcv-jc29
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CVSS 9.8
CWE-22
Published
Advisory Summary

CVE-2022-28357 is a CRITICAL (CVSS 9.8) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Github.com/nats io/nats server libraries in the Go ecosystem. The issue involves nats nats-server allows directory traversal via unintended path to a management action. Remediation is available by upgrading affected packages to version 2.7.4.

CVE-2022-28357 at a Glance

CVE Identifier CVE-2022-28357
GHSA Identifier GHSA-vpjc-4jcv-jc29
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Github.com/nats io/nats server
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2022-28357

To remediate this vulnerability, upgrade all affected Github.com/nats io/nats server 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/nats-io/nats-server fixed: 2.7.4 
Upgrade github.com/nats-io/nats-server to 2.7.4
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/nats-io/nats-server

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-28357, inspect your project dependencies for Github.com/nats io/nats server:

inspect dependencies for github.com/nats-io/nats-server

Analyze the terminal output to locate any version of Github.com/nats io/nats server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.7.4), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Github.com/nats io/nats server, 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

NATS nats-server 2.2.0 through 2.7.4 allows directory traversal because of an unintended path to a management action from a management account.

CVE-2022-28357 Affected Github.com/nats io/nats server Versions

1 component(s)
Fixed Versions:
2.7.4
Product / Package Ecosystem Affected Versions Fixed Version
github.com/nats-io/nats-server
golang/github.com/nats-io/nats-server
Go
≥ 2.2.0
< 2.7.4
2.7.4

References

NVD — CVE-2022-28357 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-28357
advisories.nats.io/cve/cve-2022-28357.... WEB
https://advisories.nats.io/CVE/CVE-2022-28357.txt
Github.com/nats io/nats server Source Repository REPOSITORY
https://github.com/nats-io/nats-server
Github.com/nats io/nats server Release RELEASE
https://github.com/nats-io/nats-server/releases/tag/v2.7.4

Frequently Asked Questions

What is CVE-2022-28357?
CVE-2022-28357 is a security vulnerability in Github.com/nats io/nats server involving NATS nats-server allows directory traversal via unintended path to a management action under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Github.com/nats io/nats server versions are affected?
Affected versions include releases prior to 2.7.4 across affected packages: github.com/nats-io/nats-server.
What version fixes CVE-2022-28357?
Upgrading to 2.7.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/nats-io/nats-server affected?
Yes, github.com/nats-io/nats-server is affected in releases prior to 2.7.4. Upgrade your dependency to 2.7.4 or later.
What is the CVSS score of CVE-2022-28357?
CVE-2022-28357 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2022-28357?
CVE-2022-28357 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Go dependencies for CVE-2022-28357?
Run the dependency tree command: 'inspect dependencies for github.com/nats-io/nats-server'. 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-vpjc-4jcv-jc29",
  "modified" : "2023-09-21T17:09:04Z",
  "published" : "2023-09-19T03:30:34Z",
  "aliases" : [ "CVE-2022-28357" ],
  "summary" : "NATS nats-server allows directory traversal via unintended path to a management action ",
  "details" : "NATS nats-server 2.2.0 through 2.7.4 allows directory traversal because of an unintended path to a management action from a management account.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/nats-io/nats-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2.0"
      }, {
        "fixed" : "2.7.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-28357"
  }, {
    "type" : "WEB",
    "url" : "https://advisories.nats.io/CVE/CVE-2022-28357.txt"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nats-io/nats-server"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nats-io/nats-server/releases/tag/v2.7.4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-09-21T17:09:04Z",
    "nvd_published_at" : "2023-09-19T02:15:54Z"
  }
}