Vulnerability-Lookup

PYSEC-2021-113

Vulnerability from pysec - Published: 2021-02-22 03:15 - Updated: 2021-02-26 12:36

Details

Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django's similar ASGIHandler, available from Django 3.0.

Impacted products

Name	purl
channels	pkg:pypi/channels

Aliases

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "channels",
        "purl": "pkg:pypi/channels"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.0",
        "3.0.1",
        "3.0.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-35681",
    "GHSA-v542-8q9x-cffc"
  ],
  "details": "Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django\u0027s similar ASGIHandler, available from Django 3.0.",
  "id": "PYSEC-2021-113",
  "modified": "2021-02-26T12:36:00Z",
  "published": "2021-02-22T03:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/django/channels/releases"
    },
    {
      "type": "WEB",
      "url": "https://channels.readthedocs.io/en/stable/releases/3.0.3.html"
    },
    {
      "type": "WEB",
      "url": "https://channels.readthedocs.io/en/stable/releases/index.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-v542-8q9x-cffc"
    }
  ]
}

CVE-2020-35681 (GCVE-0-2020-35681)

Vulnerability from cvelistv5 – Published: 2021-02-22 02:03 – Updated: 2024-08-04 17:09

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

3 references

URL	Tags
https://github.com/django/channels/releases	x_refsource_MISC
https://channels.readthedocs.io/en/stable/release…	x_refsource_MISC
https://channels.readthedocs.io/en/stable/release…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:09:14.591Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/django/channels/releases"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://channels.readthedocs.io/en/stable/releases/index.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://channels.readthedocs.io/en/stable/releases/3.0.3.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django\u0027s similar ASGIHandler, available from Django 3.0."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-22T02:03:14.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/django/channels/releases"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://channels.readthedocs.io/en/stable/releases/index.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://channels.readthedocs.io/en/stable/releases/3.0.3.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-35681",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django\u0027s similar ASGIHandler, available from Django 3.0."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/django/channels/releases",
              "refsource": "MISC",
              "url": "https://github.com/django/channels/releases"
            },
            {
              "name": "https://channels.readthedocs.io/en/stable/releases/index.html",
              "refsource": "MISC",
              "url": "https://channels.readthedocs.io/en/stable/releases/index.html"
            },
            {
              "name": "https://channels.readthedocs.io/en/stable/releases/3.0.3.html",
              "refsource": "CONFIRM",
              "url": "https://channels.readthedocs.io/en/stable/releases/3.0.3.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-35681",
    "datePublished": "2021-02-22T02:03:14.000Z",
    "dateReserved": "2020-12-24T00:00:00.000Z",
    "dateUpdated": "2024-08-04T17:09:14.591Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-V542-8Q9X-CFFC

Vulnerability from github – Published: 2021-03-19 21:29 – Updated: 2024-09-13 17:49

Summary

Django Channels leakage of session identifiers using legacy AsgiHandler

Details

Severity

7.4 (High)


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

8.2 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "channels"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-35681"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-13T00:47:11Z",
    "nvd_published_at": "2021-02-22T03:15:00Z",
    "severity": "HIGH"
  },
  "details": "Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django\u0027s similar ASGIHandler, available from Django 3.0.",
  "id": "GHSA-v542-8q9x-cffc",
  "modified": "2024-09-13T17:49:26Z",
  "published": "2021-03-19T21:29:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35681"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/channels/commit/e85874d9630474986a6937430eac52db79a2a022"
    },
    {
      "type": "WEB",
      "url": "https://channels.readthedocs.io/en/stable/releases/3.0.3.html"
    },
    {
      "type": "WEB",
      "url": "https://channels.readthedocs.io/en/stable/releases/index.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-v542-8q9x-cffc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/django/channels"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django/channels/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/channels/PYSEC-2021-113.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Django Channels leakage of session identifiers using legacy AsgiHandler"
}

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

PYSEC-2021-113

CVE-2020-35681 (GCVE-0-2020-35681)

GHSA-V542-8Q9X-CFFC

Tags

Sightings

Nomenclature

Related by attack behaviour