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CVE-2024-25622— H2O ignores headers configuration directives

Quick assessment

Affected
h2o h2o
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

H2O是H2O.ai开源的一个用于分布式、可扩展机器学习的内存平台。 H2O存在安全漏洞，该漏洞源于标头处理程序提供的配置指令允许用户修改h2o发送的响应标头，可能导致标头无法按预期进行修改。

CVSS 3.1 · Low EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1565.001 · Stored Data Manipulation
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I. Basic Information for CVE-2024-25622

Vulnerability Information
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Vulnerability Title
H2O ignores headers configuration directives
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
控制流实现总是不正确
Source: CVE Program / CVE List V5
Vulnerability Title
H2O 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
H2O是H2O.ai开源的一个用于分布式、可扩展机器学习的内存平台。 H2O存在安全漏洞，该漏洞源于标头处理程序提供的配置指令允许用户修改h2o发送的响应标头，可能导致标头无法按预期进行修改。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
h2o h2o < 123f5e2b65dcdba8f7ef659a00d24bd1249141be -

II. Public POCs for CVE-2024-25622

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III. Intelligence Information for CVE-2024-25622

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Patches & Fixes for CVE-2024-25622 (1)

Vendor Advisories for CVE-2024-25622 (1)

Same Patch Batch · h2o · 2024-10-11 · 5 CVEs total

CVE-2024-45402 8.6 HIGH Picotls double free
CVE-2024-45396 7.5 HIGH Quicly assertion failures
CVE-2024-45397 5.9 MEDIUM H2O alllows bypassing address-based access control with 0-RTT
CVE-2024-45403 3.7 LOW H2O assertion failure when HTTP/3 requests are cancelled

IV. Related Vulnerabilities

Same product: h2o
Same vendor: h2o
Same weakness: CWE-670

V. Comments for CVE-2024-25622

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