Vulnerability-Lookup

PYSEC-2019-198

Vulnerability from pysec - Published: 2019-04-17 14:29 - Updated: 2021-08-27 03:22

Details

OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

Impacted products

Name	purl
python-saml	pkg:pypi/python-saml

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "python-saml",
        "purl": "pkg:pypi/python-saml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0",
        "2.0.1",
        "2.0.2",
        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.1.4",
        "2.1.5",
        "2.1.6",
        "2.1.7",
        "2.1.8",
        "2.1.9",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.2.3",
        "2.3.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2017-11427",
    "GHSA-j8j8-348v-wfm3"
  ],
  "details": "OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.",
  "id": "PYSEC-2019-198",
  "modified": "2021-08-27T03:22:18.581552Z",
  "published": "2019-04-17T14:29:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/475445"
    },
    {
      "type": "ARTICLE",
      "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-j8j8-348v-wfm3"
    }
  ]
}

CVE-2017-11427 (GCVE-0-2017-11427)

Vulnerability from cvelistv5 – Published: 2019-04-17 13:59 – Updated: 2024-08-05 18:12

Title

Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal

Summary

Severity

7.7 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CWE

CWE-287 - Improper Authentication

Assigner

duo CNA

CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details

References

2 references

URL	Tags
https://duo.com/blog/duo-finds-saml-vulnerabiliti…	x_refsource_MISC
https://www.kb.cert.org/vuls/id/475445	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
OneLogin	PythonSAML	Affected: unspecified , < 2.3.0 (custom)

Credits

Kelby Ludwig of Duo Security

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T18:12:39.492Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.kb.cert.org/vuls/id/475445"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PythonSAML",
          "vendor": "OneLogin",
          "versions": [
            {
              "lessThan": "2.3.0",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Kelby Ludwig of Duo Security"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-04-17T13:59:19.000Z",
        "orgId": "7cd4c57f-0a88-4dda-be53-70336b413766",
        "shortName": "duo"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.kb.cert.org/vuls/id/475445"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@duo.com",
          "ID": "CVE-2017-11427",
          "STATE": "PUBLIC",
          "TITLE": "Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "PythonSAML",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_value": "2.3.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "OneLogin"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Kelby Ludwig of Duo Security"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-287: Improper Authentication"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations",
              "refsource": "MISC",
              "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
            },
            {
              "name": "https://www.kb.cert.org/vuls/id/475445",
              "refsource": "MISC",
              "url": "https://www.kb.cert.org/vuls/id/475445"
            }
          ]
        },
        "source": {
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7cd4c57f-0a88-4dda-be53-70336b413766",
    "assignerShortName": "duo",
    "cveId": "CVE-2017-11427",
    "datePublished": "2019-04-17T13:59:19.000Z",
    "dateReserved": "2017-07-18T00:00:00.000Z",
    "dateUpdated": "2024-08-05T18:12:39.492Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-J8J8-348V-WFM3

Vulnerability from github – Published: 2019-07-05 21:11 – Updated: 2024-10-25 21:17

Summary

Python-saml allows manipulation of SAML data without invalidation of cryptographic signature

Details

Severity

7.7 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

8.3 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "python-saml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-11427"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:42:49Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.",
  "id": "GHSA-j8j8-348v-wfm3",
  "modified": "2024-10-25T21:17:28Z",
  "published": "2019-07-05T21:11:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11427"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SAML-Toolkits/python-saml/commit/fad881b4432febea69d70691dfed51c93f0de10f"
    },
    {
      "type": "WEB",
      "url": "https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/SAML-Toolkits/python-saml"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-j8j8-348v-wfm3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/python-saml/PYSEC-2019-198.yaml"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/475445"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Python-saml allows manipulation of SAML data without invalidation of cryptographic signature"
}

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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PYSEC-2019-198

CVE-2017-11427 (GCVE-0-2017-11427)

GHSA-J8J8-348V-WFM3

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