6.8

CVE-2022-3916

Keycloak: session takeover with oidc offline refreshtokens

Session takeover with OIDC offline refreshtokens

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.
Mögliche Gegenmaßnahme
Keycloak Server: Install latest version
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Keycloak Version < 20.0.2
Redhat ≫ Single Sign-on Version- SwEditiontext-only
Redhat ≫ Single Sign-on Version7.6
   Redhat ≫ Enterprise Linux Version7.0
   Redhat ≫ Enterprise Linux Version8.0
   Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Openshift Container Platform Version4.9
   Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Openshift Container Platform Version4.10
   Redhat ≫ Enterprise Linux Version8.0
Weitere Schwachstelleninformationen
SystemKeycloak
≫
Produkt Keycloak Server
Version < 20.0.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.454
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.8 1.6 5.2
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
secalert@redhat.com 6.8 1.6 5.2
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE-384 Session Fixation

Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

CWE-613 Insufficient Session Expiration

According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization."