CVE-2022-23652: Github.com/clastix/capsule proxy Improper Authentication Vulnerability

HIGH
Advisory Identifier: GHSA-9cwv-cppx-mqjm
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CVSS 8.8
CWE-287
Published
Advisory Summary

CVE-2022-23652 is a HIGH (CVSS 8.8) improper authentication vulnerability (CWE-287: Improper Authentication) affecting Github.com/clastix/capsule proxy libraries in the Go ecosystem. The issue involves improper authentication in capsule proxy. Remediation is available by upgrading affected packages to version 0.2.1.

CVE-2022-23652 at a Glance

CVE Identifier CVE-2022-23652
GHSA Identifier GHSA-9cwv-cppx-mqjm
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-287: Improper Authentication
Affected Product Github.com/clastix/capsule proxy
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-2022-23652

To remediate this vulnerability, upgrade all affected Github.com/clastix/capsule proxy 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/clastix/capsule-proxy fixed: 0.2.1 
Upgrade github.com/clastix/capsule-proxy to 0.2.1
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/clastix/capsule-proxy

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-23652, inspect your project dependencies for Github.com/clastix/capsule proxy:

inspect dependencies for github.com/clastix/capsule-proxy

Analyze the terminal output to locate any version of Github.com/clastix/capsule proxy in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.2.1), 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-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Github.com/clastix/capsule proxy, 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

### Impact Using a malicious `Connection` header, an attacker with a proper authentication mechanism could start a privilege escalation towards the Kubernetes API Server, being able to exploit the `cluster-admin` Role bound to `capsule-proxy`. ### Patches Patch has been merged in the v0.2.1 release. ### Workarounds Upgrading is mandatory.

CVE-2022-23652 Affected Github.com/clastix/capsule proxy Versions

1 component(s)
Fixed Versions:
0.2.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/clastix/capsule-proxy
golang/github.com/clastix/capsule-proxy
Go
< 0.2.1
0.2.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm
NVD — CVE-2022-23652 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23652
Github.com/clastix/capsule proxy Source Repository REPOSITORY
https://github.com/clastix/capsule-proxy/issues/188
Security Fix Commit FIX COMMIT
https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8
Github.com/clastix/capsule proxy Source Repository REPOSITORY
https://github.com/clastix/capsule-proxy

Frequently Asked Questions

What is CVE-2022-23652?
CVE-2022-23652 is a security vulnerability in Github.com/clastix/capsule proxy involving Improper Authentication in Capsule Proxy under CWE-287: Improper Authentication.
Which Github.com/clastix/capsule proxy versions are affected?
Affected versions include releases prior to 0.2.1 across affected packages: github.com/clastix/capsule-proxy.
What version fixes CVE-2022-23652?
Upgrading to 0.2.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/clastix/capsule-proxy affected?
Yes, github.com/clastix/capsule-proxy is affected in releases prior to 0.2.1. Upgrade your dependency to 0.2.1 or later.
What is the CVSS score of CVE-2022-23652?
CVE-2022-23652 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-2022-23652?
CVE-2022-23652 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Go dependencies for CVE-2022-23652?
Run the dependency tree command: 'inspect dependencies for github.com/clastix/capsule-proxy'. 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-9cwv-cppx-mqjm",
  "modified" : "2022-02-25T15:39:14Z",
  "published" : "2022-02-23T21:17:25Z",
  "aliases" : [ "CVE-2022-23652" ],
  "summary" : "Improper Authentication in Capsule Proxy",
  "details" : "### Impact\n\nUsing a malicious `Connection` header, an attacker with a proper authentication mechanism could start a privilege escalation towards the Kubernetes API Server, being able to exploit the `cluster-admin` Role bound to `capsule-proxy`.\n\n### Patches\n\nPatch has been merged in the v0.2.1 release.\n\n### Workarounds\n\nUpgrading is mandatory.\n",
  "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/clastix/capsule-proxy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-23652"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/clastix/capsule-proxy/issues/188"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/clastix/capsule-proxy"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-02-23T21:17:25Z",
    "nvd_published_at" : "2022-02-22T20:15:00Z"
  }
}