keycloak: resource privilege extension via access token in oauth
Published Oct 26, 2017
7.2
HIGHCVSS 3.1
EPSS 1.92%
Description
It was found that Keycloak oauth would permit an authenticated resource to obtain an access/refresh token pair from the authentication server, permitting indefinite usage in the case of permission revocation. An attacker on an already compromised resource could use this flaw to grant himself continued permissions and possibly conduct further attacks.
Affected products
-
- Version 3.4.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Red Hat, Inc. | Keycloak | n/a |
|
No data.
Red Hat Single Sign-On 7.1
n/a
Fixed · RHSA-2017:2906
Red Hat Single Sign-On 7.1 for RHEL 6
rh-sso7-keycloak-0:2.5.14-1.Final_redhat_1.1.jbcs.el6
Fixed · RHSA-2017:2904
Red Hat Single Sign-On 7.1 for RHEL 7
rh-sso7-keycloak-0:2.5.14-1.Final_redhat_1.1.jbcs.el7
Fixed · RHSA-2017:2905
Red Hat Mobile Application Platform 4
keycloak
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Single Sign-On 7.1 | n/a | Fixed | RHSA-2017:2906 |
| Red Hat Single Sign-On 7.1 for RHEL 6 | rh-sso7-keycloak-0:2.5.14-1.Final_redhat_1.1.jbcs.el6 | Fixed | RHSA-2017:2904 |
| Red Hat Single Sign-On 7.1 for RHEL 7 | rh-sso7-keycloak-0:2.5.14-1.Final_redhat_1.1.jbcs.el7 | Fixed | RHSA-2017:2905 |
| Red Hat Mobile Application Platform 4 | keycloak | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N
AV:N/AC:L/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.92% (0.01924) | 79.20th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.92% (0.01924) | 79.03th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.17% (0.00171) | 54.47th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.17% (0.00171) | 53.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00179) | 53.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (8)
- https://access.redhat.com/errata/RHSA-2017:2904 vendor-advisoryx_refsource_REDHATIssue TrackingThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2905 vendor-advisoryx_refsource_REDHATIssue TrackingThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2906 vendor-advisoryx_refsource_REDHATIssue TrackingThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-12160 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1484154 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/advisories/GHSA-qc72-gfvw-76h7 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-12160
- https://www.cve.org/CVERecord?id=CVE-2017-12160
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2017:2904 | vendor-advisoryx_refsource_REDHATIssue TrackingThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2017:2905 | vendor-advisoryx_refsource_REDHATIssue TrackingThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2017:2906 | vendor-advisoryx_refsource_REDHATIssue TrackingThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-12160 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1484154 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://github.com/advisories/GHSA-qc72-gfvw-76h7 | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-12160 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-12160 |
Change history (0)
No recorded changes yet.