Vulnerabilities
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CVE Vulnerabilities

CVE-2022-3916

Session Fixation

Published: Sep 20, 2023 | Modified: Nov 21, 2024
CVSS 3.x
6.8
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
6.8 MODERATE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-3916
CWEhttps://cwe.mitre.org/data/definitions/384.html

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.

Weakness

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.

Affected Software

NameVendorStart VersionEnd Version
KeycloakRedhat*20.0.2 (excluding)
Single_sign-onRedhat- (including)- (including)
Red Hat Single Sign-On 7RedHatrh-sso7-keycloak*
Red Hat Single Sign-On 7.6.1RedHatrh-sso7-keycloak*
Red Hat Single Sign-On 7.6 for RHEL 7RedHatrh-sso7-keycloak-0:18.0.3-1.redhat_00002.1.el7sso*
Red Hat Single Sign-On 7.6 for RHEL 7RedHatrh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el7sso*
Red Hat Single Sign-On 7.6 for RHEL 8RedHatrh-sso7-keycloak-0:18.0.3-1.redhat_00002.1.el8sso*
Red Hat Single Sign-On 7.6 for RHEL 8RedHatrh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el8sso*
Red Hat Single Sign-On 7.6 for RHEL 9RedHatrh-sso7-keycloak-0:18.0.3-1.redhat_00002.1.el9sso*
Red Hat Single Sign-On 7.6 for RHEL 9RedHatrh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el9sso*
RHEL-8 based Middleware ContainersRedHatrh-sso-7/sso76-openshift-rhel8:7.6-15*
RHEL-8 based Middleware ContainersRedHatrh-sso-7/sso76-openshift-rhel8:7.6-20*

Extended Description

Such a scenario is commonly observed when:

In the generic exploit of session fixation vulnerabilities, an attacker creates a new session on a web application and records the associated session identifier. The attacker then causes the victim to associate, and possibly authenticate, against the server using that session identifier, giving the attacker access to the user’s account through the active session.

Potential Mitigations

References

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