CVE-2023-38199

published 2023-07-13

CVE-2023-38199: coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow…

Priority P3 46 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
debian	modsecurity-crs	< modsecurity-crs 3.3.4-1~deb11u2 (bullseye)	modsecurity-crs 3.3.4-1~deb11u2 (bullseye)
owasp	coreruleset	<= 3.3.4	—

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

osv 9.8 CRITICAL

vendor_debian 9.8 CRITICAL

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