GHSA-MJ35-2RGF-CV8P

Vulnerability from github – Published: 2024-04-03 16:46 – Updated: 2025-04-04 01:10
VLAI
Summary
OpenID Connect client Atom Exhaustion in provider configuration worker ets table location
Details

Impact

DOS by Atom exhaustion is possible by calling oidcc_provider_configuration_worker:get_provider_configuration/1 or oidcc_provider_configuration_worker:get_jwks/1.

Since the name is usually provided as a static value in the application using oidcc, this is unlikely to be exploited.

Details

Example to illustrate the vulnerability.

{ok, Claims} =
  oidcc:retrieve_userinfo(
    Token,
    myapp_oidcc_config_provider,
    <<"client_id">>,
    <<"client_secret">>,
    #{}
  )

The vulnerability is present in oidcc_provider_configuration_worker:get_ets_table_name/1. The function get_ets_table_name is calling erlang:list_to_atom/1.

https://github.com/erlef/oidcc/blob/018dbb53dd752cb1e331637d8e0e6a489ba1fae9/src/oidcc_provider_configuration_worker.erl#L385-L388

There might be a case (Very highly improbable) where the 2nd argument of oidcc_provider_configuration_worker:get_*/1 is called with a different atom each time which eventually leads to the atom table filling up and the node crashing.

Patches

Patched in 3.0.2, 3.1.2 & 3.2.0-beta.3

Workarounds

Make sure only valid provider configuration worker names are passed to the functions.

References

  • https://erlef.github.io/security-wg/secure_coding_and_deployment_hardening/atom_exhaustion.html
  • https://www.cve.org/CVERecord?id=CVE-2024-31209
  • https://euvd.enisa.europa.eu/enisa/EUVD-2024-1249
  • https://github.com/advisories/GHSA-mj35-2rgf-cv8p
Severity
5.3 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Hex",
        "name": "oidcc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Hex",
        "name": "oidcc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.1.0"
            },
            {
              "fixed": "3.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Hex",
        "name": "oidcc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0-beta.1"
            },
            {
              "fixed": "3.2.0-beta.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-31209"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-03T16:46:30Z",
    "nvd_published_at": "2024-04-04T16:15:09Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nDOS by Atom exhaustion is possible by calling `oidcc_provider_configuration_worker:get_provider_configuration/1` or `oidcc_provider_configuration_worker:get_jwks/1`.\n\nSince the name is usually provided as a static value in the application using `oidcc`, this is unlikely to be exploited.\n\n### Details\n\nExample to illustrate the vulnerability.\n\n```erlang\n{ok, Claims} =\n  oidcc:retrieve_userinfo(\n    Token,\n    myapp_oidcc_config_provider,\n    \u003c\u003c\"client_id\"\u003e\u003e,\n    \u003c\u003c\"client_secret\"\u003e\u003e,\n    #{}\n  )\n```\n\nThe vulnerability is present in `oidcc_provider_configuration_worker:get_ets_table_name/1`.\nThe function `get_ets_table_name` is calling `erlang:list_to_atom/1`.\n\nhttps://github.com/erlef/oidcc/blob/018dbb53dd752cb1e331637d8e0e6a489ba1fae9/src/oidcc_provider_configuration_worker.erl#L385-L388\n\nThere might be a case (Very highly improbable) where the 2nd argument of\n`oidcc_provider_configuration_worker:get_*/1` is called with a different atom each time which eventually leads to\nthe atom table filling up and the node crashing.\n\n### Patches\n\nPatched in `3.0.2`, `3.1.2` \u0026 `3.2.0-beta.3`\n\n### Workarounds\n\nMake sure only valid provider configuration worker names are passed to the functions.\n\n### References\n\n* https://erlef.github.io/security-wg/secure_coding_and_deployment_hardening/atom_exhaustion.html\n* https://www.cve.org/CVERecord?id=CVE-2024-31209\n* https://euvd.enisa.europa.eu/enisa/EUVD-2024-1249\n* https://github.com/advisories/GHSA-mj35-2rgf-cv8p",
  "id": "GHSA-mj35-2rgf-cv8p",
  "modified": "2025-04-04T01:10:32Z",
  "published": "2024-04-03T16:46:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/erlef/oidcc/security/advisories/GHSA-mj35-2rgf-cv8p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-31209"
    },
    {
      "type": "WEB",
      "url": "https://github.com/erlef/oidcc/commit/2f304d877c7e0613d6fd952d7feacbf40dbc355c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/erlef/oidcc/commit/48171fb62688fb4eec1ead0884aa501e0aa68649"
    },
    {
      "type": "WEB",
      "url": "https://github.com/erlef/oidcc/commit/ac458ed88dc292aad6fa7343f6a53e73c560fb1a"
    },
    {
      "type": "WEB",
      "url": "https://erlef.github.io/security-wg/secure_coding_and_deployment_hardening/atom_exhaustion.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/erlef/oidcc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/erlef/oidcc/blob/018dbb53dd752cb1e331637d8e0e6a489ba1fae9/src/oidcc_provider_configuration_worker.erl#L385-L388"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenID Connect client Atom Exhaustion in provider configuration worker ets table location"
}



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