github - ghsa-267v-3v32-g6q5

GHSA-267V-3V32-G6Q5

Vulnerability from github – Published: 2023-10-17 14:20 – Updated: 2023-10-24 18:32

Summary

Cross-site Scripting via missing Binding syntax validation

Details

Impact

The package does not validate the ACS Location URI according to the SAML binding being parsed.

If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow.

Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider.

Note: The severity is considered “High” because the SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability.

Patches

This issue is fixed in 0.4.14

Workarounds

Users of the package can perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.

References

This issue was reported by Francesco Lacerenza from Doyensec.

Severity ?

7.1 (High)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/crewjam/saml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-45683"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-17T14:20:59Z",
    "nvd_published_at": "2023-10-16T19:15:11Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nThe package does not validate the ACS Location URI according to the SAML binding being parsed.\n\nIf abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow.\n\nConsequently, an attacker may perform any authenticated action as the victim once the victim\u2019s browser loaded the SAML IdP initiated SSO link for the malicious service provider.\n\nNote: The severity is considered \u201cHigh\u201d because the SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability.\n\n### Patches\n\nThis issue is fixed in 0.4.14\n\n### Workarounds\n\nUsers of the package can perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata. \n\n### References\n\nThis issue was reported by Francesco Lacerenza from Doyensec.\n",
  "id": "GHSA-267v-3v32-g6q5",
  "modified": "2023-10-24T18:32:14Z",
  "published": "2023-10-17T14:20:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45683"
    },
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/crewjam/saml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cross-site Scripting via missing Binding syntax validation"
}

CVE-2023-45683 (GCVE-0-2023-45683)

Vulnerability from cvelistv5 – Published: 2023-10-16 18:13 – Updated: 2024-09-13 19:38

Summary

github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.

Severity ?

7.1 (High)


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

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/crewjam/saml/security/advisori…	x_refsource_CONFIRM
	https://github.com/crewjam/saml/commit/b07b16cf83…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	crewjam	saml	Affected: < 0.4.14

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T20:29:31.575Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5"
          },
          {
            "name": "https://github.com/crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-45683",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-13T19:22:56.293510Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-13T19:38:10.391Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "saml",
          "vendor": "crewjam",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.4.14"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim\u2019s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-10-16T18:13:10.451Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5"
        },
        {
          "name": "https://github.com/crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79"
        }
      ],
      "source": {
        "advisory": "GHSA-267v-3v32-g6q5",
        "discovery": "UNKNOWN"
      },
      "title": "Cross site scripting via missing binding syntax validation In ACS location in github.com/crewjam/saml"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-45683",
    "datePublished": "2023-10-16T18:13:10.451Z",
    "dateReserved": "2023-10-10T14:36:40.862Z",
    "dateUpdated": "2024-09-13T19:38:10.391Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-267V-3V32-G6Q5

Impact

Patches

Workarounds

References

CVE-2023-45683 (GCVE-0-2023-45683)

Tags

Sightings

Nomenclature