h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. The configuration directives provided by the headers handler allows users to modify the response headers being sent by h2o. The configuration file of h2o has scopes, and the inner scopes (e.g., path level) are expected to inherit the configuration defined in outer scopes (e.g., global level). However, if a header directive is used in the inner scope, all the definition in outer scopes are ignored. This can lead to headers not being modified as expected. Depending on the headers being added or removed unexpectedly, this behavior could lead to unexpected client behavior. This vulnerability is fixed in commit 123f5e2b65dcdba8f7ef659a00d24bd1249141be.
History

Tue, 12 Nov 2024 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Dena
Dena h2o
CPEs cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*
Vendors & Products Dena
Dena h2o

Fri, 11 Oct 2024 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 11 Oct 2024 14:30:00 +0000

Type Values Removed Values Added
Description h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. The configuration directives provided by the headers handler allows users to modify the response headers being sent by h2o. The configuration file of h2o has scopes, and the inner scopes (e.g., path level) are expected to inherit the configuration defined in outer scopes (e.g., global level). However, if a header directive is used in the inner scope, all the definition in outer scopes are ignored. This can lead to headers not being modified as expected. Depending on the headers being added or removed unexpectedly, this behavior could lead to unexpected client behavior. This vulnerability is fixed in commit 123f5e2b65dcdba8f7ef659a00d24bd1249141be.
Title H2O ignores headers configuration directives
Weaknesses CWE-670
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-10-11T14:20:31.921Z

Updated: 2024-10-11T14:46:36.996Z

Reserved: 2024-02-08T22:26:33.511Z

Link: CVE-2024-25622

cve-icon Vulnrichment

Updated: 2024-10-11T14:46:29.055Z

cve-icon NVD

Status : Analyzed

Published: 2024-10-11T15:15:03.947

Modified: 2024-11-12T20:04:39.957

Link: CVE-2024-25622

cve-icon Redhat

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