Vulnerability-Lookup

CVE-2021-39171 (GCVE-0-2021-39171)

Vulnerability from cvelistv5 – Published: 2021-08-27 22:05 – Updated: 2024-08-04 01:58

Title

Unlimited transforms allowed for signed nodes

Summary

Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.

Severity

5.3 (Medium)


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

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7661 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/node-saml/passport-saml/securi…	x_refsource_CONFIRM
https://github.com/node-saml/passport-saml/pull/595	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
node-saml	passport-saml	Affected: < 3.1.0	guessed

Show details on NVD website

JSON

To clipboard

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          }
        ],
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        "lastModified": "2024-11-21T06:18:47.097",
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      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Unlimited transforms allowed for signed nodes",
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}

FKIE_CVE-2021-39171

Vulnerability from fkie_nvd - Published: 2021-08-27 22:15 - Updated: 2026-06-17 04:03

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/node-saml/passport-saml/pull/595	Patch, Third Party Advisory
security-advisories@github.com	https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/node-saml/passport-saml/pull/595	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2	Third Party Advisory

Impacted products

	Vendor	Product	Version
	passport-saml_project	passport-saml	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "passport-saml",
          "vendor": "node-saml",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.1.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:passport-saml_project:passport-saml:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "C05B72FD-D09E-4D1F-AE7C-F3E101B60045",
              "versionEndExcluding": "3.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2."
    },
    {
      "lang": "es",
      "value": "Passport-SAML es un proveedor de autenticaci\u00f3n SAML versi\u00f3n 2.0 para Passport, la biblioteca de autenticaci\u00f3n de Node.js. Anterior a la versi\u00f3n 3.1.0, una carga \u00fatil SAML maliciosa puede requerir transformaciones que consumen recursos significativos del sistema para procesar, y por lo tanto, resultando en un servicio reducido o denegado. Esta ser\u00eda una manera efectiva de llevar a cabo un ataque de denegaci\u00f3n de servicio. Esto ha sido resuelto en versi\u00f3n 3.1.0. La resoluci\u00f3n consiste en limitar el n\u00famero de transformaciones permitidas a 2."
    }
  ],
  "id": "CVE-2021-39171",
  "lastModified": "2026-06-17T04:03:14.560",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
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        "impactScore": 1.4,
        "source": "security-advisories@github.com",
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      },
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
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      ],
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    },
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "Third Party Advisory"
      ],
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    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-5379-R78W-42H2

Vulnerability from github – Published: 2021-08-30 16:11 – Updated: 2024-02-10 00:55

Summary

Unlimited transforms allowed for signed nodes

Details

Impact

A malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack.

Patches

This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.

References

https://github.com/node-saml/passport-saml/pull/595

Severity

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "passport-saml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-39171"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-27T23:25:28Z",
    "nvd_published_at": "2021-08-27T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nA malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack.\n\n### Patches\nThis has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.\n\n### References\nhttps://github.com/node-saml/passport-saml/pull/595\n",
  "id": "GHSA-5379-r78w-42h2",
  "modified": "2024-02-10T00:55:45Z",
  "published": "2021-08-30T16:11:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39171"
    },
    {
      "type": "WEB",
      "url": "https://github.com/node-saml/passport-saml/pull/595"
    },
    {
      "type": "WEB",
      "url": "https://github.com/node-saml/passport-saml/commit/f1e00b64c21a725f545e675cd810bbaa435a3972"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/node-saml/passport-saml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unlimited transforms allowed for signed nodes"
}

GSD-2021-39171

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-39171

Aliases

CVE-2021-39171

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-39171",
    "description": "Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.",
    "id": "GSD-2021-39171"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-39171"
      ],
      "details": "Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2.",
      "id": "GSD-2021-39171",
      "modified": "2023-12-13T01:23:15.985050Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-39171",
        "STATE": "PUBLIC",
        "TITLE": "Unlimited transforms allowed for signed nodes"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "passport-saml",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 3.1.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "node-saml"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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          {
            "lang": "eng",
            "value": "Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-400: Uncontrolled Resource Consumption"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2",
            "refsource": "CONFIRM",
            "url": "https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2"
          },
          {
            "name": "https://github.com/node-saml/passport-saml/pull/595",
            "refsource": "MISC",
            "url": "https://github.com/node-saml/passport-saml/pull/595"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-5379-r78w-42h2",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c3.1.0",
          "affected_versions": "All versions before 3.1.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2021-09-07",
          "description": "A malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service.",
          "fixed_versions": [
            "3.1.0"
          ],
          "identifier": "CVE-2021-39171",
          "identifiers": [
            "CVE-2021-39171",
            "GHSA-5379-r78w-42h2"
          ],
          "not_impacted": "All versions starting from 3.1.0",
          "package_slug": "npm/passport-saml",
          "pubdate": "2021-08-27",
          "solution": "Upgrade to version 3.1.0 or above.",
          "title": "Uncontrolled Resource Consumption",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-39171"
          ],
          "uuid": "217c90b4-0e7e-41d8-b016-a9700224a655"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:passport-saml_project:passport-saml:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-39171"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. Prior to version 3.1.0, a malicious SAML payload can require transforms that consume significant system resources to process, thereby resulting in reduced or denied service. This would be an effective way to perform a denial-of-service attack. This has been resolved in version 3.1.0. The resolution is to limit the number of allowable transforms to 2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-400"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/node-saml/passport-saml/security/advisories/GHSA-5379-r78w-42h2"
            },
            {
              "name": "https://github.com/node-saml/passport-saml/pull/595",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/node-saml/passport-saml/pull/595"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-09-07T18:36Z",
      "publishedDate": "2021-08-27T22:15Z"
    }
  }
}

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.

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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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CVE-2021-39171 (GCVE-0-2021-39171)

FKIE_CVE-2021-39171

GHSA-5379-R78W-42H2

Impact

Patches

References

GSD-2021-39171

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