CVE-2022-3916 Keycloak: session takeover with oidc offline refreshtokens

2023-09-2014:28:52

CWE-384

redhat

github.com

keycloak

session takeover

offline_access

security flaw

refresh tokens

shared computers

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

6.6

Confidence

Low

EPSS

0.001

Percentile

41.7%

SSVC

Exploitation

none

Automatable

Technical Impact

total

JSON

A flaw was found in the offline_access scope in Keycloak. This issue would affect users of shared computers more (especially if cookies are not cleared), due to a lack of root session validation, and the reuse of session ids across root and user authentication sessions. This enables an attacker to resolve a user session attached to a previously authenticated user; when utilizing the refresh token, they will be issued a token for the original user.

CNA Affected

[
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7",
    "packageName": "keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6.1"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6.1",
    "packageName": "keycloak",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6::el7"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6 for RHEL 7",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:18.0.3-1.redhat_00002.1.el7sso",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso7-keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6::el7"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6 for RHEL 7",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:18.0.6-1.redhat_00001.1.el7sso",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso7-keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6 for RHEL 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:18.0.3-1.redhat_00002.1.el8sso",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso7-keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6 for RHEL 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:18.0.6-1.redhat_00001.1.el8sso",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso7-keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6 for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:18.0.3-1.redhat_00002.1.el9sso",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso7-keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:red_hat_single_sign_on:7.6::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Single Sign-On 7.6 for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:18.0.6-1.redhat_00001.1.el9sso",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso7-keycloak",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhosemc:1.0::el8"
    ],
    "vendor": "Red Hat",
    "product": "RHEL-8 based Middleware Containers",
    "versions": [
      {
        "status": "unaffected",
        "version": "7.6-15",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso-7/sso76-openshift-rhel8",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:rhosemc:1.0::el8"
    ],
    "vendor": "Red Hat",
    "product": "RHEL-8 based Middleware Containers",
    "versions": [
      {
        "status": "unaffected",
        "version": "7.6-20",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rh-sso-7/sso76-openshift-rhel8",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "defaultStatus": "affected"
  }
]