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CVE-2020-14359

HIGHCVSS 7.3/10EPSS 0.93%

Last modified

CVE-2020-14359 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker can bypass our Gatekeeper. Lower case headers are also accepted by some webservers (e.g. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker can bypass our Gatekeeper. Lower case headers are also accepted by some webservers (e.g. Jetty). This means there is no protection when we put a Gatekeeper in front of a Jetty server and use lowercase headers.

Metrics

CVSS 3.1
7.3/10

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

EPSS Probability
0.93%

56.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatLouketo ProxyAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-14359?
A vulnerability was found in all versions of Keycloak Gatekeeper, where on using lower case HTTP headers (via cURL) an attacker can bypass our Gatekeeper. Lower case headers are also accepted by some webservers (e.g. Jetty). This means there is no protection when we put a Gatekeeper in front of a Jetty server and use lowercase headers.
How severe is CVE-2020-14359?
CVE-2020-14359 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.
How do I fix CVE-2020-14359?
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-2020-14359?

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

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Source: NVD / NIST