CVE-2023-22465— Http4s has fatal error parsing User-Agent and Server headers
Quick assessment
Affected
http4s http4s
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.
http4s是一款开源的用于Scala的流HTTP服务器。 http4s若干版本存在输入验证错误漏洞，该漏洞源于其User-Agent和Server头解析器在处理某些输入上容易出现致命错误。以下版本受到影响：0.1.0版本至0.21.34、0.22.15、0.23.17和1.0.0-M38之前的版本。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-22465
Vulnerability Information
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Vulnerability Title
Http4s has fatal error parsing User-Agent and Server headers
Source: CVE Program / CVE List V5
Vulnerability Description
Http4s is a Scala interface for HTTP services. Starting with version 0.1.0 and prior to versions 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38, the `User-Agent` and `Server` header parsers are susceptible to a fatal error on certain inputs. In http4s, modeled headers are lazily parsed, so this only applies to services that explicitly request these typed headers. Fixes are released in 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38. As a workaround, use the weakly typed header interface.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
http4s 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
http4s是一款开源的用于Scala的流HTTP服务器。 http4s若干版本存在输入验证错误漏洞，该漏洞源于其User-Agent和Server头解析器在处理某些输入上容易出现致命错误。以下版本受到影响：0.1.0版本至0.21.34、0.22.15、0.23.17和1.0.0-M38之前的版本。
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
II. Public POCs for CVE-2023-22465
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Vendor Advisories for CVE-2023-22465 (1)
-
https://github.com/http4s/http4s/security/advisories/GHSA-54w6-vxfh-fw7f x_refsource_CONFIRM
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