Vulnerability in Red Hat Single Sign-On 7
CVE-2022-3916
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Red Hat Single Sign-On 7
- Red Hat Single Sign-On 7.6.1
- Red Hat Single Sign-On 7.6 For Rhel 7 — versions 0:18.0.3-1.redhat_00002.1.el7sso, 0:18.0.6-1.redhat_00001.1.el7sso
- Red Hat Single Sign-On 7.6 For Rhel 8 — versions 0:18.0.3-1.redhat_00002.1.el8sso, 0:18.0.6-1.redhat_00001.1.el8sso
- Red Hat Single Sign-On 7.6 For Rhel 9 — versions 0:18.0.3-1.redhat_00002.1.el9sso, 0:18.0.6-1.redhat_00001.1.el9sso
- Red Hat Rhel-8 Based Middleware Containers — versions 7.6-15, 7.6-20
- Red Hat Enterprise Linux — versions 7.0, 8.0, 9.0
- Red Hat Keycloak
- Red Hat Openshift Container Platform — versions 4.9, 4.10
- Red Hat Openshift Container Platform For Linuxone — versions 4.9, 4.10
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2022:8961 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2022:8962 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2022:8963 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2022:8964 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2022:8965 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2023:1043 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2023:1044 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2023:1045 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2023:1047 (vendor-advisory, Vendor Advisory)
- access.redhat.com/errata/RHSA-2023:1049 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-3916?
- CVE-2022-3916 is a medium-severity vulnerability in Red Hat Single Sign-On 7, classified under Session Fixation. CVSS score: 6.8/10. Published 2023-09-20.
- How severe is CVE-2022-3916?
- Medium severity. CVSS v3 base score is 6.8 out of 10.