Vulnerability-Lookup

GHSA-J2JP-WVQG-WC2G

Vulnerability from github – Published: 2022-11-29 23:55 – Updated: 2022-12-01 22:13

Summary

crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication

Details

Impact

The crewjam/saml go library is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements.

Patches

This issue has been corrected in version 0.4.9.

Credit

This issue was reported by Felix Wilhelm from Google Project Zero.

Severity

9.1 (Critical)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/crewjam/saml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-41912"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-11-29T23:55:54Z",
    "nvd_published_at": "2022-11-28T15:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nThe crewjam/saml go library is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements.\n\n### Patches\n\nThis issue has been corrected in version 0.4.9.\n\n### Credit\n\nThis issue was reported by Felix Wilhelm from Google Project Zero.\n",
  "id": "GHSA-j2jp-wvqg-wc2g",
  "modified": "2022-12-01T22:13:04Z",
  "published": "2022-11-29T23:55:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/security/advisories/GHSA-j2jp-wvqg-wc2g"
    },
    {
      "type": "WEB",
      "url": "https://github.com/prometheus/exporter-toolkit/security/advisories/GHSA-7rg2-cxvp-9p7p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41912"
    },
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/commit/aee3fb1edeeaf1088fcb458727e0fd863d277f8b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/crewjam/saml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/releases/tag/v0.4.9"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2022-1129"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/170356/crewjam-saml-Signature-Bypass.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication"
}

CVE-2022-41912 (GCVE-0-2022-41912)

Vulnerability from cvelistv5 – Published: 2022-11-28 00:00 – Updated: 2025-04-23 16:34

Title

crewjam/saml go library is vulnerable to signature bypass via multiple Assertion elements

Summary

The crewjam/saml go library prior to version 0.4.9 is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements. This issue has been corrected in version 0.4.9. There are no workarounds other than upgrading to a fixed version.

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 15:48 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7745 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/crewjam/saml/security/advisori…
https://github.com/crewjam/saml/commit/aee3fb1ede…
http://packetstormsecurity.com/files/170356/crewj…

Impacted products

1 product

Vendor	Product	Version
crewjam	saml	Affected: < 0.4.9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:56:38.465Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/crewjam/saml/security/advisories/GHSA-j2jp-wvqg-wc2g"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/crewjam/saml/commit/aee3fb1edeeaf1088fcb458727e0fd863d277f8b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/170356/crewjam-saml-Signature-Bypass.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-41912",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T15:48:03.802338Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T16:34:38.036Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "saml",
          "vendor": "crewjam",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.4.9"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The crewjam/saml go library prior to version 0.4.9 is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements. This issue has been corrected in version 0.4.9. There are no workarounds other than upgrading to a fixed version."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-02T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/crewjam/saml/security/advisories/GHSA-j2jp-wvqg-wc2g"
        },
        {
          "url": "https://github.com/crewjam/saml/commit/aee3fb1edeeaf1088fcb458727e0fd863d277f8b"
        },
        {
          "url": "http://packetstormsecurity.com/files/170356/crewjam-saml-Signature-Bypass.html"
        }
      ],
      "source": {
        "advisory": "GHSA-j2jp-wvqg-wc2g",
        "discovery": "UNKNOWN"
      },
      "title": "crewjam/saml go library is vulnerable to signature bypass via multiple Assertion elements"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-41912",
    "datePublished": "2022-11-28T00:00:00.000Z",
    "dateReserved": "2022-09-30T00:00:00.000Z",
    "dateUpdated": "2025-04-23T16:34:38.036Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Vulnerability timeline

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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.
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