CVE-2019-10157

MEDIUMCVSS 4.7/10EPSS 0.21%

Last modified

CVE-2019-10157 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.0
4.7/10

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.21%

10.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatKeycloak< 4.8.3
RedhatSingle Sign-On< 7.3.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-10157?
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.
How severe is CVE-2019-10157?
CVE-2019-10157 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2019-10157?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST