Vulnerability-Lookup

GHSA-MG2G-8PWJ-R2J2

Vulnerability from github – Published: 2021-06-10 17:21 – Updated: 2022-03-15 16:38

Summary

Authentication bypass in SilverStripe GraphQL

Details

The GraphQL module accepts basic-auth as an authentication method by default. This can be used to bypass MFA authentication if the silverstripe/mfa module is installed, which is now a commonly installed module. A users password is still required though.

Basic-auth has been removed as a default authentication method. If desired, it can be re-enabled by adding it to the authenticators key of a schema, or on SilverStripe\Graphql\Auth\Handler

Severity

6.5 (Medium)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "silverstripe/graphql"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "silverstripe/graphql"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-alpha1"
            },
            {
              "fixed": "4.0.0-alpha2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26136"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-288"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-06-10T14:41:10Z",
    "nvd_published_at": "2021-06-08T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The GraphQL module accepts basic-auth as an authentication method by default. This can be used to bypass MFA authentication if the silverstripe/mfa module is installed, which is now a commonly installed module. A users password is still required though.\n\nBasic-auth has been removed as a default authentication method. If desired, it can be re-enabled by adding it to the authenticators key of a schema, or on SilverStripe\\Graphql\\Auth\\Handler",
  "id": "GHSA-mg2g-8pwj-r2j2",
  "modified": "2022-03-15T16:38:13Z",
  "published": "2021-06-10T17:21:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26136"
    },
    {
      "type": "WEB",
      "url": "https://forum.silverstripe.org/c/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/graphql/CVE-2020-26136.yaml"
    },
    {
      "type": "WEB",
      "url": "https://www.silverstripe.org/blog/tag/release"
    },
    {
      "type": "WEB",
      "url": "https://www.silverstripe.org/download/security-releases"
    },
    {
      "type": "WEB",
      "url": "https://www.silverstripe.org/download/security-releases/cve-2020-26136"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Authentication bypass in SilverStripe GraphQL"
}

CVE-2020-26136 (GCVE-0-2020-26136)

Vulnerability from cvelistv5 – Published: 2021-06-08 19:37 – Updated: 2024-08-04 15:49

Summary

In SilverStripe through 4.6.0-rc1, GraphQL doesn't honour MFA (multi-factor authentication) when using basic authentication.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://www.silverstripe.org/download/security-re…	x_refsource_MISC
https://www.silverstripe.org/blog/tag/release	x_refsource_MISC
https://forum.silverstripe.org/c/releases	x_refsource_MISC
https://www.silverstripe.org/download/security-re…	x_refsource_MISC

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            "url": "https://www.silverstripe.org/download/security-releases/cve-2020-26136"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.