Description

Coder allows oragnizations to provision remote development environments via Terraform. Prior to versions 2.6.1, 2.7.3, and 2.8.4, a vulnerability in Coder's OIDC authentication could allow an attacker to bypass the `CODER_OIDC_EMAIL_DOMAIN` verification and create an account with an email not in the allowlist. Deployments are only affected if the OIDC provider allows users to create accounts on the provider. During OIDC registration, the user's email was improperly validated against the allowed `CODER_OIDC_EMAIL_DOMAIN`s. This could allow a user with a domain that only partially matched an allowed domain to successfully login or register. An attacker could register a domain name that exploited this vulnerability and register on a Coder instance with a public OIDC provider. Coder instances with OIDC enabled and protected by the `CODER_OIDC_EMAIL_DOMAIN` configuration are affected. Coder instances using a private OIDC provider are not affected, as arbitrary users cannot register through a private OIDC provider without first having an account on the provider. Public OIDC providers are impacted. GitHub authentication and external authentication are not impacted. This vulnerability is remedied in versions 2.8.4, 2.7.3, and 2.6.1 All versions prior to these patches are affected by the vulnerability.*It is recommended that customers upgrade their deployments as soon as possible if they are utilizing OIDC authentication with the `CODER_OIDC_EMAIL_DOMAIN` setting.

Severity

 

CVSS Version 3.x CVSS Version 2.0

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score:  N/A

NVD assessment not yet provided.

CNA:  GitHub, Inc.

Base Score:  8.2 HIGH

Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings. A CNA provided score within the CVE List has been displayed.

CVSS 2.0 Severity and Metrics:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://github.com/coder/coder/commit/1171ce7add017481d28441575024209ac160ecb0
https://github.com/coder/coder/commit/2ba84911f8b02605e5958d5e4a2fe3979ec50b31
https://github.com/coder/coder/commit/2d37eb42e7db656e343fe1f36de5ab1a1a62f4fb
https://github.com/coder/coder/commit/4439a920e454a82565e445e4376c669e3b89591c
https://github.com/coder/coder/security/advisories/GHSA-7cc2-r658-7xpf

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	GitHub, Inc.

Change History

1 change records found show changes

New CVE Received by NIST 3/20/2024 10:52:20 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Added	CWE		GitHub, Inc. CWE-20
Added	Description		Record truncated, showing 500 of 1480 characters. View Entire Change Record Coder allows oragnizations to provision remote development environments via Terraform. Prior to versions 2.6.1, 2.7.3, and 2.8.4, a vulnerability in Coder's OIDC authentication could allow an attacker to bypass the `CODER_OIDC_EMAIL_DOMAIN` verification and create an account with an email not in the allowlist. Deployments are only affected if the OIDC provider allows users to create accounts on the provider. During OIDC registration, the user's email was improperly validated against the allowed
Added	Reference		GitHub, Inc. https://github.com/coder/coder/commit/1171ce7add017481d28441575024209ac160ecb0 [No types assigned]
Added	Reference		GitHub, Inc. https://github.com/coder/coder/commit/2ba84911f8b02605e5958d5e4a2fe3979ec50b31 [No types assigned]
Added	Reference		GitHub, Inc. https://github.com/coder/coder/commit/2d37eb42e7db656e343fe1f36de5ab1a1a62f4fb [No types assigned]
Added	Reference		GitHub, Inc. https://github.com/coder/coder/commit/4439a920e454a82565e445e4376c669e3b89591c [No types assigned]
Added	Reference		GitHub, Inc. https://github.com/coder/coder/security/advisories/GHSA-7cc2-r658-7xpf [No types assigned]