SecuriTricks - CVE-2024-25622

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.

Product(s) Impacted

Product	Versions
h2o HTTP Server	[]

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-670

Always-Incorrect Control Flow Implementation

The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated.

References

https://github.com/h2o/h2o/commit/123f5e2b65dcdba8f7ef659a00d24bd1249141be

https://github.com/h2o/h2o/issues/3332

https://github.com/h2o/h2o/security/advisories/GHSA-5m7v-cj65-h6pj

CVSS Score

3.1 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: NONE
Availability Impact: NONE

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

View Vector String

Timeline

Published: Oct. 11, 2024, 3:15 p.m.
Last Modified: Oct. 15, 2024, 12:58 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

CVE-2024-25622