OWASP ModSecurity Core Rule Set up to 3.3.4 Content-Header access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in OWASP ModSecurity Core Rule Set up to 3.3.4. Affected is an unknown function of the component Content-Header Handler. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2023-38199. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in OWASP ModSecurity Core Rule Set up to 3.3.4. It has been declared as critical. This vulnerability affects an unknown code block of the component Content-Header Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 07/13/2023 as 3191. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-38199. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 299744 (Debian dla-4488 : modsecurity-crs - security update), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (299744) and EUVD (EUVD-2023-42021). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 299744
Nessus Name: Debian dla-4488 : modsecurity-crs - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

07/13/2023 🔍
07/13/2023 +0 days 🔍
07/13/2023 +0 days 🔍
02/23/2026 +955 days 🔍

Sourcesinfo

Advisory: 3191
Status: Confirmed

CVE: CVE-2023-38199 (🔍)
GCVE (CVE): GCVE-0-2023-38199
GCVE (VulDB): GCVE-100-233980
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20130913

Entryinfo

Created: 07/13/2023 09:25
Updated: 02/23/2026 00:53
Changes: 07/13/2023 09:25 (40), 08/02/2023 17:39 (1), 01/19/2026 00:42 (16), 02/23/2026 00:53 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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