pysec - pysec-2023-82

PYSEC-2023-82

Vulnerability from pysec - Published: 2023-05-26 21:15 - Updated: 2023-06-06 20:23

Details

Django-SES is a drop-in mail backend for Django. The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the SESEventWebhookView class intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates. This issue was patched in version 3.5.0.

Impacted products

Name	purl
django-ses	pkg:pypi/django-ses

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django-ses",
        "purl": "pkg:pypi/django-ses"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "b71b5f413293a13997b6e6314086cb9c22629795"
            }
          ],
          "repo": "https://github.com/django-ses/django-ses",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1",
        "0.2",
        "0.3.0",
        "0.4.0",
        "0.4.1",
        "0.6.0",
        "0.7.0",
        "0.7.1",
        "0.8.0",
        "0.8.1",
        "0.8.10",
        "0.8.11",
        "0.8.12",
        "0.8.13",
        "0.8.14",
        "0.8.2",
        "0.8.3",
        "0.8.3.1",
        "0.8.4",
        "0.8.5",
        "0.8.6",
        "0.8.7",
        "0.8.8",
        "0.8.9",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "2.0.0",
        "2.1.0",
        "2.1.1",
        "2.2.0",
        "2.2.1",
        "2.2.2",
        "2.3.0",
        "2.3.1",
        "2.4.0",
        "2.5.0",
        "2.6.0",
        "2.6.1",
        "3.0.0",
        "3.0.1",
        "3.1.0",
        "3.1.2",
        "3.2.0",
        "3.2.1",
        "3.2.2",
        "3.3.0",
        "3.4.0",
        "3.4.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2023-33185",
    "GHSA-qg36-9jxh-fj25"
  ],
  "details": "Django-SES is a drop-in mail backend for Django. The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the `SESEventWebhookView class` intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates. This issue was patched in version 3.5.0.",
  "id": "PYSEC-2023-82",
  "modified": "2023-06-06T20:23:42.892470Z",
  "published": "2023-05-26T21:15:00Z",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md"
    },
    {
      "type": "FIX",
      "url": "https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25"
    }
  ]
}

GHSA-QG36-9JXH-FJ25

Vulnerability from github – Published: 2023-05-22 19:41 – Updated: 2024-11-18 16:26

Summary

Incorrect signature verification in django-ses

Details

The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the SESEventWebhookView class intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates.

Severity ?

4.6 (Medium)


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

2.1 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "django-ses"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-33185"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-05-22T19:41:56Z",
    "nvd_published_at": "2023-05-26T21:15:20Z",
    "severity": "LOW"
  },
  "details": "The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the `SESEventWebhookView class` intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates.",
  "id": "GHSA-qg36-9jxh-fj25",
  "modified": "2024-11-18T16:26:29Z",
  "published": "2023-05-22T19:41:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33185"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/django-ses/django-ses"
    },
    {
      "type": "WEB",
      "url": "https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/django-ses/PYSEC-2023-82.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Incorrect signature verification in django-ses"
}

CVE-2023-33185 (GCVE-0-2023-33185)

Vulnerability from cvelistv5 – Published: 2023-05-26 20:03 – Updated: 2025-01-14 19:31

Title

Incorrect signature verification in django-ses

Summary

Django-SES is a drop-in mail backend for Django. The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the `SESEventWebhookView class` intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates. This issue was patched in version 3.5.0.

Severity ?

4.6 (Medium)


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

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

GitHub_M

References

URL

Tags

	https://github.com/django-ses/django-ses/security…	x_refsource_CONFIRM
	https://github.com/django-ses/django-ses/commit/b…	x_refsource_MISC
	https://github.com/django-ses/django-ses/blob/3d6…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	django-ses	django-ses	Affected: < 3.5.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T15:39:35.828Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25"
          },
          {
            "name": "https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/django-ses/django-ses/commit/b71b5f413293a13997b6e6314086cb9c22629795"
          },
          {
            "name": "https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/django-ses/django-ses/blob/3d627067935876487f9938310d5e1fbb249a7778/CVE/001-cert-url-signature-verification.md"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-33185",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-14T19:31:36.439745Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-14T19:31:45.155Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "django-ses",
          "vendor": "django-ses",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Django-SES is a drop-in mail backend for Django. The django_ses library implements a mail backend for Django using AWS Simple Email Service. The library exports the `SESEventWebhookView class` intended to receive signed requests from AWS to handle email bounces, subscriptions, etc. These requests are signed by AWS and are verified by django_ses, however the verification of this signature was found to be flawed as it allowed users to specify arbitrary public certificates. This issue was patched in version 3.5.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-347",
              "description": "CWE-347: Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "references": [
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          "tags": [
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          ],
          "url": "https://github.com/django-ses/django-ses/security/advisories/GHSA-qg36-9jxh-fj25"
        },
        {
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          "tags": [
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      ],
      "source": {
        "advisory": "GHSA-qg36-9jxh-fj25",
        "discovery": "UNKNOWN"
      },
      "title": "Incorrect signature verification in django-ses"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "cveId": "CVE-2023-33185",
    "datePublished": "2023-05-26T20:03:33.725Z",
    "dateReserved": "2023-05-17T22:25:50.697Z",
    "dateUpdated": "2025-01-14T19:31:45.155Z",
    "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

PYSEC-2023-82

GHSA-QG36-9JXH-FJ25

CVE-2023-33185 (GCVE-0-2023-33185)

Tags

Sightings

Nomenclature