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CVE-2023-6927

MEDIUMCVSS 6.1/10EPSS 1.11%

Last modified

CVE-2023-6927 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.

Metrics

CVSS 3.1
6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability
1.11%

61.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatKeycloakAll versions
RedhatSingle Sign-On7.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-6927?
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
How severe is CVE-2023-6927?
CVE-2023-6927 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.
How do I fix CVE-2023-6927?
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.

Are you affected by CVE-2023-6927?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST