CVE-2017-12159

Description

It was found that the cookie used for CSRF prevention in Keycloak was not unique to each session. An attacker could use this flaw to gain access to an authenticated user session, leading to possible information disclosure or further attacks.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.45% Top 25%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat, Inc. keycloak
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1484111 third party advisory vdb entry issue tracking
https://access.redhat.com/errata/RHSA-2017:2904 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:2905 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:2906 third party advisory vendor advisory
http://www.securityfocus.com/bid/101601 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-12159?
CVE-2017-12159 has been scored as a high severity vulnerability.
How to fix CVE-2017-12159?
To fix CVE-2017-12159, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-12159 being actively exploited in the wild?
It is possible that CVE-2017-12159 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-12159?
CVE-2017-12159 affects Red Hat, Inc. keycloak.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.