github - ghsa-82vr-5769-6358

GHSA-82VR-5769-6358

Vulnerability from github – Published: 2023-11-16 14:33 – Updated: 2023-11-16 14:33

Summary

Ethyca Fides Cryptographically Weak Generation of One-Time Codes for Identity Verification

Details

Impact

The Fides Privacy Center allows data subject users to submit privacy and consent requests to data controller users of the Fides web application.

Privacy requests allow data subjects to submit a request to access all person data held by the data controller, or delete/erase it. Consent request allows data subject users to modify their privacy preferences for how the data controller uses their personal data e.g. data sales and sharing consent opt-in/opt-out.

If subject_identity_verification_required in the [execution] section of fides.toml or the env var FIDES__EXECUTION__SUBJECT_IDENTITY_VERIFICATION_REQUIRED is set to True on the fides webserver backend, data subjects are sent a one-time code to their email address or phone number, depending on messaging configuration, and the one-time code must be entered in the Privacy Center UI by the data subject before the privacy or consent request is submitted.

It was identified that the one-time code values for these requests were generated by the python random module, a cryptographically weak pseduo-random number generator (PNRG). If an attacker generates several hundred consecutive one-time codes, this vulnerability allows the attacker to predict all future one-time code values during the lifetime of the backend python process.

There is no security impact on data access requests as the personal data download package is not shared in the Privacy Center itself. However, this vulnerability allows an attacker to (i) submit a verified data erasure request, resulting in deletion of data for the targeted user and (ii) submit a verified consent request, modifying a user's privacy preferences.

Patches

The vulnerability has been patched in Fides version 2.24.0. Users are advised to upgrade to this version or later to secure their systems against this threat.

Workarounds

None

References

https://peps.python.org/pep-0506/

Severity ?

8.2 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "ethyca-fides"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.24.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-48224"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-11-16T14:33:06Z",
    "nvd_published_at": "2023-11-15T21:15:08Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nThe Fides Privacy Center allows data subject users to submit privacy and consent requests to data controller users of the Fides web application.\n\nPrivacy requests allow data subjects to submit a request to access all person data held by the data controller, or delete/erase it.  Consent request allows data subject users to modify their privacy preferences for how the data controller uses their personal data e.g. data sales and sharing consent opt-in/opt-out.\n\nIf `subject_identity_verification_required` in the `[execution]` section of `fides.toml` or the env var `FIDES__EXECUTION__SUBJECT_IDENTITY_VERIFICATION_REQUIRED` is set to `True` on the fides webserver backend, data subjects are sent a one-time code to their email address or phone number, depending on messaging configuration, and the one-time code must be entered in the Privacy Center UI by the data subject before the privacy or consent request is submitted.\n\nIt was identified that the one-time code values for these requests were generated by the python `random` module, a cryptographically weak pseduo-random number generator (PNRG). If an attacker generates several hundred consecutive one-time codes, this vulnerability allows the attacker to predict all future one-time code values during the lifetime of the backend python process.\n\nThere is no security impact on data access requests as the personal data download package is not shared in the Privacy Center itself. However, this vulnerability allows an attacker to (i) submit a verified data erasure request, resulting in deletion of data for the targeted user and (ii) submit a verified consent request, modifying a user\u0027s privacy preferences.\n\n### Patches\nThe vulnerability has been patched in Fides version `2.24.0`. Users are advised to upgrade to this version or later to secure their systems against this threat.\n\n### Workarounds\nNone\n\n### References\n* https://peps.python.org/pep-0506/",
  "id": "GHSA-82vr-5769-6358",
  "modified": "2023-11-16T14:33:06Z",
  "published": "2023-11-16T14:33:06Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ethyca/fides/security/advisories/GHSA-82vr-5769-6358"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48224"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ethyca/fides/commit/685bae61c203d29ed189f4b066a5223a9bb774c6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ethyca/fides"
    },
    {
      "type": "WEB",
      "url": "https://peps.python.org/pep-0506"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Ethyca Fides Cryptographically Weak Generation of One-Time Codes for Identity Verification"
}

CVE-2023-48224 (GCVE-0-2023-48224)

Vulnerability from cvelistv5 – Published: 2023-11-15 20:53 – Updated: 2024-08-29 15:02

Title

Cryptographically Weak Generation of One-Time Codes for Identity Verification in ethyca-fides

Summary

Fides is an open-source privacy engineering platform for managing the fulfillment of data privacy requests in a runtime environment, and the enforcement of privacy regulations in code. The Fides Privacy Center allows data subject users to submit privacy and consent requests to data controller users of the Fides web application. Privacy requests allow data subjects to submit a request to access all person data held by the data controller, or delete/erase it. Consent request allows data subject users to modify their privacy preferences for how the data controller uses their personal data e.g. data sales and sharing consent opt-in/opt-out. If `subject_identity_verification_required` in the `[execution]` section of `fides.toml` or the env var `FIDES__EXECUTION__SUBJECT_IDENTITY_VERIFICATION_REQUIRED` is set to `True` on the fides webserver backend, data subjects are sent a one-time code to their email address or phone number, depending on messaging configuration, and the one-time code must be entered in the Privacy Center UI by the data subject before the privacy or consent request is submitted. It was identified that the one-time code values for these requests were generated by the python `random` module, a cryptographically weak pseduo-random number generator (PNRG). If an attacker generates several hundred consecutive one-time codes, this vulnerability allows the attacker to predict all future one-time code values during the lifetime of the backend python process. There is no security impact on data access requests as the personal data download package is not shared in the Privacy Center itself. However, this vulnerability allows an attacker to (i) submit a verified data erasure request, resulting in deletion of data for the targeted user and (ii) submit a verified consent request, modifying a user's privacy preferences. The vulnerability has been patched in Fides version `2.24.0`. Users are advised to upgrade to this version or later to secure their systems against this threat. There are no known workarounds for this vulnerability.

Severity ?

8.2 (High)


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

CWE

CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Assigner

GitHub_M

References

URL

Tags

	https://github.com/ethyca/fides/security/advisori…	x_refsource_CONFIRM
	https://github.com/ethyca/fides/commit/685bae61c2…	x_refsource_MISC
	https://peps.python.org/pep-0506/	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	ethyca	fides	Affected: < 2.24.0

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T21:23:39.424Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
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            ],
            "url": "https://github.com/ethyca/fides/security/advisories/GHSA-82vr-5769-6358"
          },
          {
            "name": "https://github.com/ethyca/fides/commit/685bae61c203d29ed189f4b066a5223a9bb774c6",
            "tags": [
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            ],
            "url": "https://github.com/ethyca/fides/commit/685bae61c203d29ed189f4b066a5223a9bb774c6"
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            "url": "https://peps.python.org/pep-0506/"
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        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-48224",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-29T15:01:17.448133Z",
                "version": "2.0.3"
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        },
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      }
    ],
    "cna": {
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          "vendor": "ethyca",
          "versions": [
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      ],
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        {
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        }
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      "metrics": [
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      "source": {
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        "discovery": "UNKNOWN"
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      "title": "Cryptographically Weak Generation of One-Time Codes for Identity Verification in ethyca-fides"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "datePublished": "2023-11-15T20:53:19.590Z",
    "dateReserved": "2023-11-13T13:25:18.480Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

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

GHSA-82VR-5769-6358

Impact

Patches

Workarounds

References

CVE-2023-48224 (GCVE-0-2023-48224)

Tags

Sightings

Nomenclature