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CVE-2023-6134

MEDIUMCVSS 5.4/10EPSS 0.91%

Last modified

CVE-2023-6134 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. This flaw is the result of an incomplete fix for CVE-2020-10748.

Metrics

CVSS 3.1
5.4/10

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

EPSS Probability
0.91%

55.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatSingle Sign-On< 7.6
RedhatKeycloak< 22.0.7
RedhatOpenshift Container Platform4.11
RedhatOpenshift Container Platform4.12
RedhatOpenshift Container Platform For Power4.9
RedhatOpenshift Container Platform For Power4.10
RedhatOpenshift Container Platform Ibm Z Systems4.9
RedhatOpenshift Container Platform Ibm Z Systems4.10
RedhatSingle Sign-OnAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-6134?
A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. This flaw is the result of an incomplete fix for CVE-2020-10748.
How severe is CVE-2023-6134?
CVE-2023-6134 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.
How do I fix CVE-2023-6134?
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-2023-6134?

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

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Source: NVD / NIST