CVE-2023-33189: Github.com/pomerium/pomerium Pomerium Vulnerable To Incorrect Authorization Vulnerability

CRITICAL
Advisory Identifier: GHSA-pvrc-wvj2-f59p
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CVSS 10.0
CWE-285
Published
Advisory Summary

CVE-2023-33189 is a CRITICAL (CVSS 10.0) pomerium vulnerable to incorrect authorization vulnerability (CWE-285: Improper Authorization) affecting Github.com/pomerium/pomerium libraries in the Go ecosystem. The issue involves pomerium vulnerable to incorrect authorization with specially crafted requests. Remediation is available by upgrading affected packages to version 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4.

CVE-2023-33189 at a Glance

CVE Identifier CVE-2023-33189
GHSA Identifier GHSA-pvrc-wvj2-f59p
Severity CRITICAL
CVSS v3.1 Base Score 10.0
CWE Classification CWE-285: Improper Authorization
Affected Product Github.com/pomerium/pomerium
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 10.0

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:C/C:H/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 Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2023-33189

To remediate this vulnerability, upgrade all affected Github.com/pomerium/pomerium 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/pomerium/pomerium fixed: 0.22.2 
Upgrade github.com/pomerium/pomerium to 0.22.2
github.com/pomerium/pomerium fixed: 0.21.4 
Upgrade github.com/pomerium/pomerium to 0.21.4
github.com/pomerium/pomerium fixed: 0.20.1 
Upgrade github.com/pomerium/pomerium to 0.20.1
github.com/pomerium/pomerium fixed: 0.19.2 
Upgrade github.com/pomerium/pomerium to 0.19.2
github.com/pomerium/pomerium fixed: 0.18.1 
Upgrade github.com/pomerium/pomerium to 0.18.1
github.com/pomerium/pomerium fixed: 0.17.4 
Upgrade github.com/pomerium/pomerium to 0.17.4
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/pomerium/pomerium

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-33189, inspect your project dependencies for Github.com/pomerium/pomerium:

inspect dependencies for github.com/pomerium/pomerium

Analyze the terminal output to locate any version of Github.com/pomerium/pomerium in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.22.2), 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-285: Improper Authorization, where the product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. In Github.com/pomerium/pomerium, 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 With specially crafted requests, incorrect authorization decisions may be made by Pomerium. ### Patches We are releasing patch fixes to address this vulnerability going back to `v0.17.X`. Please upgrade to: - v0.22.2 - v0.21.4 - v0.20.1 - v0.19.2 - v0.18.1 - v0.17.4 ### For more information If you have any questions or comments about this advisory: - Open an issue in [pomerium/pomerium](https://github.com/pomerium/pomerium/issues) - Email us at [security@pomerium.com](mailto:security@pomerium.com)

CVE-2023-33189 Affected Github.com/pomerium/pomerium Versions

6 component(s)
Fixed Versions:
0.22.20.21.40.20.10.19.20.18.10.17.4
Product / Package Ecosystem Affected Versions Fixed Version
github.com/pomerium/pomerium
golang/github.com/pomerium/pomerium
Go
≥ 0.22.0
< 0.22.2
0.22.2
github.com/pomerium/pomerium
golang/github.com/pomerium/pomerium
Go
≥ 0.21.0
< 0.21.4
0.21.4
github.com/pomerium/pomerium
golang/github.com/pomerium/pomerium
Go
≥ 0.20.0
< 0.20.1
0.20.1
github.com/pomerium/pomerium
golang/github.com/pomerium/pomerium
Go
≥ 0.19.0
< 0.19.2
0.19.2
github.com/pomerium/pomerium
golang/github.com/pomerium/pomerium
Go
≥ 0.18.0
< 0.18.1
0.18.1
github.com/pomerium/pomerium
golang/github.com/pomerium/pomerium
Go
< 0.17.4
0.17.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/pomerium/pomerium/security/advisories/GHSA-pvrc-wvj2-f59p
NVD — CVE-2023-33189 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-33189
Security Fix Commit FIX COMMIT
https://github.com/pomerium/pomerium/commit/d315e683357a9b587ba9ef399a8813bcc52fdebb
Github.com/pomerium/pomerium Source Repository REPOSITORY
https://github.com/pomerium/pomerium
Github.com/pomerium/pomerium Release RELEASE
https://github.com/pomerium/pomerium/releases/tag/v0.17.4
Github.com/pomerium/pomerium Release RELEASE
https://github.com/pomerium/pomerium/releases/tag/v0.18.1
Github.com/pomerium/pomerium Release RELEASE
https://github.com/pomerium/pomerium/releases/tag/v0.19.2
Github.com/pomerium/pomerium Release RELEASE
https://github.com/pomerium/pomerium/releases/tag/v0.20.1
Github.com/pomerium/pomerium Release RELEASE
https://github.com/pomerium/pomerium/releases/tag/v0.21.4
Github.com/pomerium/pomerium Release RELEASE
https://github.com/pomerium/pomerium/releases/tag/v0.22.2

Frequently Asked Questions

What is CVE-2023-33189?
CVE-2023-33189 is a security vulnerability in Github.com/pomerium/pomerium involving Pomerium vulnerable to Incorrect Authorization with specially crafted requests under CWE-285: Improper Authorization.
Which Github.com/pomerium/pomerium versions are affected?
Affected versions include releases prior to 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4 across affected packages: github.com/pomerium/pomerium.
What version fixes CVE-2023-33189?
Upgrading to 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/pomerium/pomerium affected?
Yes, github.com/pomerium/pomerium is affected in releases prior to 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4. Upgrade your dependency to 0.22.2, 0.21.4, 0.20.1, 0.19.2, 0.18.1, 0.17.4 or later.
What is the CVSS score of CVE-2023-33189?
CVE-2023-33189 has a CVSS v3.1 base score of 10.0 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2023-33189?
CVE-2023-33189 is classified under CWE-285: Improper Authorization (The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Go dependencies for CVE-2023-33189?
Run the dependency tree command: 'inspect dependencies for github.com/pomerium/pomerium'. 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-pvrc-wvj2-f59p",
  "modified" : "2023-05-26T22:00:39Z",
  "published" : "2023-05-26T22:00:39Z",
  "aliases" : [ "CVE-2023-33189" ],
  "summary" : "Pomerium vulnerable to Incorrect Authorization with specially crafted requests",
  "details" : "### Impact\n\nWith specially crafted requests, incorrect authorization decisions may be made by Pomerium.\n\n### Patches\n\nWe are releasing patch fixes to address this vulnerability going back to `v0.17.X`. Please upgrade to:\n\n- v0.22.2\n- v0.21.4\n- v0.20.1\n- v0.19.2\n- v0.18.1\n- v0.17.4\n\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n- Open an issue in [pomerium/pomerium](https://github.com/pomerium/pomerium/issues)\n- Email us at [security@pomerium.com](mailto:security@pomerium.com)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/pomerium/pomerium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.22.0"
      }, {
        "fixed" : "0.22.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/pomerium/pomerium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.21.0"
      }, {
        "fixed" : "0.21.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/pomerium/pomerium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.20.0"
      }, {
        "fixed" : "0.20.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/pomerium/pomerium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.19.0"
      }, {
        "fixed" : "0.19.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/pomerium/pomerium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.18.0"
      }, {
        "fixed" : "0.18.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/pomerium/pomerium"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.17.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/security/advisories/GHSA-pvrc-wvj2-f59p"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-33189"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/commit/d315e683357a9b587ba9ef399a8813bcc52fdebb"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pomerium/pomerium"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/releases/tag/v0.17.4"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/releases/tag/v0.18.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/releases/tag/v0.19.2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/releases/tag/v0.20.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/releases/tag/v0.21.4"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pomerium/pomerium/releases/tag/v0.22.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-05-26T22:00:39Z",
    "nvd_published_at" : "2023-05-30T06:16:37Z"
  }
}