CVE-2019-10157

low-risk

Published 2019-06-12

It was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received from the server in its backchannel logout . An attacker with local access could use this to construct a malicious web token setting an NBF parameter that could prevent user access indefinitely.

Do I need to act?

0.02% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.7/10 Medium

LOCAL / HIGH complexity

Affected Products (2)

Keycloak

Single Sign-On

Affected Vendors

Redhat

References (4)

Third Party Advisory http://www.securityfocus.com/bid/108734

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10157

Third Party Advisory http://www.securityfocus.com/bid/108734

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10157

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low-risk

Severity 12/34 · Low

Exploitability 0/34 · Minimal

Exposure 7/34 · Low