Vulnerability-Lookup

GHSA-G6J2-CH25-5MMV

Vulnerability from github – Published: 2020-03-25 16:52 – Updated: 2021-01-08 20:24

Summary

Missing Token Replay Detection in Saml2 Authentication services for ASP.NET

Details

Impact

Token Replay Detection is an important defence in depth measure for Single Sign On solutions. In all previous 2.X versions, the Token Replay Detection is not properly implemented.

Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use.

Patches

The 2.5.0 version is patched.

Workarounds

There are no workarounds with existing versions. Fixing the issue requires code updates.

References

https://en.wikipedia.org/wiki/Replay_attack

For more information

If you have any questions or comments about this advisory: * Comment on #711. * Email us at security@sustainsys.com if you think that there are further security issues.

Severity

8.2 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Sustainsys.Saml2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-5261"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-03-25T01:16:34Z",
    "nvd_published_at": "2020-03-25T02:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nToken Replay Detection is an important defence in depth measure for Single Sign On solutions. In all previous 2.X versions, the Token Replay Detection is not properly implemented. \n\nNote that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use.\n\n### Patches\nThe 2.5.0 version is patched.\n\n### Workarounds\nThere are no workarounds with existing versions. Fixing the issue requires code updates.\n\n### References\nhttps://en.wikipedia.org/wiki/Replay_attack\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Comment on #711.\n* Email us at [security@sustainsys.com](mailto:security@susatinsys.com) if you think that there are further security issues.",
  "id": "GHSA-g6j2-ch25-5mmv",
  "modified": "2021-01-08T20:24:58Z",
  "published": "2020-03-25T16:52:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5261"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Sustainsys/Saml2/issues/711"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Missing Token Replay Detection in Saml2 Authentication services for ASP.NET"
}

CVE-2020-5261 (GCVE-0-2020-5261)

Vulnerability from cvelistv5 – Published: 2020-03-25 01:15 – Updated: 2024-08-04 08:22

Title

Missing Token Replay Detection

Summary

Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 has a faulty implementation of Token Replay Detection. Token Replay Detection is an important defence in depth measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use. Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 have a faulty implementation of Token Replay Detection. Token Replay Detection is an important defense measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 and prior versions are not affected. These versions have a correct Token Replay Implementation and are safe to use.

Severity

8.2 (High)


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

CWE

CWE-294 - Authentication Bypass by Capture-replay

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/Sustainsys/Saml2/security/advi…	x_refsource_CONFIRM
https://github.com/Sustainsys/Saml2/commit/e58e0a…	x_refsource_MISC
https://github.com/Sustainsys/Saml2/issues/711	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Sustainsys	Saml2	Affected: >= 2.0.0, < 2.5.0

Show details on NVD website

JSON

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  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:22:09.101Z",
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv"
          },
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            "tags": [
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            ],
            "url": "https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://github.com/Sustainsys/Saml2/issues/711"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Saml2",
          "vendor": "Sustainsys",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.5.0"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 has a faulty implementation of Token Replay Detection. Token Replay Detection is an important defence in depth measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use. Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 have a faulty implementation of Token Replay Detection. Token Replay Detection is an important defense measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 and prior versions are not affected. These versions have a correct Token Replay Implementation and are safe to use."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
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            "confidentialityImpact": "HIGH",
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          }
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      ],
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              "description": "CWE-294: Authentication Bypass by Capture-replay",
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-03-25T20:55:08.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Sustainsys/Saml2/issues/711"
        }
      ],
      "source": {
        "advisory": "GHSA-g6j2-ch25-5mmv",
        "discovery": "UNKNOWN"
      },
      "title": "Missing Token Replay Detection",
      "x_legacyV4Record": {
        "CVE_data_meta": {
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          "ID": "CVE-2020-5261",
          "STATE": "PUBLIC",
          "TITLE": "Missing Token Replay Detection"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Saml2",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e= 2.0.0, \u003c 2.5.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Sustainsys"
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          ]
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          ]
        },
        "references": {
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            {
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            },
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  },
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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.

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.

Action not permitted

GHSA-G6J2-CH25-5MMV

Impact

Patches

Workarounds

References

For more information

CVE-2020-5261 (GCVE-0-2020-5261)

Tags

Sightings

Nomenclature

Related by attack behaviour