What is CVE-2023-38199?

CVE-2023-38199 is a vulnerability in coreruleset (aka OWASP ModSecurity Core Rule Set) through version 3.3.4 that allows attackers to bypass a Web Application Firewall (WAF) by using multiple Content-Type request headers.

What is the severity of CVE-2023-38199?

CVE-2023-38199 has a severity level of critical with a severity value of 9.8.

How does CVE-2023-38199 affect coreruleset?

CVE-2023-38199 affects coreruleset (aka OWASP ModSecurity Core Rule Set) through version 3.3.4 by allowing attackers to bypass the WAF with a crafted payload using multiple Content-Type request headers.

Is there a fix for CVE-2023-38199?

As of now, there is no fix available for CVE-2023-38199. It is recommended to follow the official GitHub issue and pull request for updates.

What is the Common Weakness Enumeration (CWE) ID for CVE-2023-38199?

The CWE ID for CVE-2023-38199 is CWE-843.

Vulnerability/
CVE-2023-38199

critical

9.8

CWE

843

13/7/2023

30/10/2024

CVE-2023-38199

First published: Thu Jul 13 2023(Updated: )

coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not block multiple Content-Type headers, which might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion." This occurs when the web application relies on only the last Content-Type header.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
OWASP ModSecurity Core Rule Set	<=3.3.4

Remedy

https://github.com/coreruleset/coreruleset/issues/3191

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Reference Links

Frequently Asked Questions

What is CVE-2023-38199?
CVE-2023-38199 is a vulnerability in coreruleset (aka OWASP ModSecurity Core Rule Set) through version 3.3.4 that allows attackers to bypass a Web Application Firewall (WAF) by using multiple Content-Type request headers.
What is the severity of CVE-2023-38199?
CVE-2023-38199 has a severity level of critical with a severity value of 9.8.
How does CVE-2023-38199 affect coreruleset?
CVE-2023-38199 affects coreruleset (aka OWASP ModSecurity Core Rule Set) through version 3.3.4 by allowing attackers to bypass the WAF with a crafted payload using multiple Content-Type request headers.
Is there a fix for CVE-2023-38199?
As of now, there is no fix available for CVE-2023-38199. It is recommended to follow the official GitHub issue and pull request for updates.
What is the Common Weakness Enumeration (CWE) ID for CVE-2023-38199?
The CWE ID for CVE-2023-38199 is CWE-843.

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collector/nvd-api
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vendor/owasp
canonical/owasp modsecurity core rule set
version/owasp modsecurity core rule set/3.3.4

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