{
  "id": "CVE-2023-32682",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2023-06-06T19:15:11.743",
  "lastModified": "2023-06-07T02:45:20.120",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "Synapse is a Matrix protocol homeserver written in Python with the Twisted framework. In affected versions it may be possible for a deactivated user to login when using uncommon configurations. This only applies if any of the following are true: 1. JSON Web Tokens are enabled for login via the `jwt_config.enabled` configuration setting. 2. The local password database is enabled via the `password_config.enabled` and `password_config.localdb_enabled` configuration settings *and* a user's password is updated via an admin API after a user is deactivated. Note that the local password database is enabled by default, but it is uncommon to set a user's password after they've been deactivated. Installations that are configured to only allow login via Single Sign-On (SSO) via CAS, SAML or OpenID Connect (OIDC); or via an external password provider (e.g. LDAP) are not affected. If not using JSON Web Tokens, ensure that deactivated users do not have a password set. This issue has been addressed in version 1.85.0. Users are advised to upgrade."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/matrix-org/synapse/pull/15624",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/matrix-org/synapse/pull/15634",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-26c5-ppr8-f33p",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://matrix-org.github.io/synapse/latest/admin_api/user_admin_api.html#create-or-modify-account",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://matrix-org.github.io/synapse/latest/jwt.html",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#password_config",
      "source": "security-advisories@github.com"
    }
  ]
}