CVE-2022-39348 Twisted vulnerable to NameVirtualHost Host header injection

2022-10-2600:00:00

CWE-80

CWE-79

GitHub_M

www.cve.org

twisted

namevirtualhost

host header

injection

html

http

security vulnerability

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

Twisted is an event-based framework for internet applications. Started with version 0.9.4, when the host header does not match a configured host twisted.web.vhost.NameVirtualHost will return a NoResource resource which renders the Host header unescaped into the 404 response allowing HTML and script injection. In practice this should be very difficult to exploit as being able to modify the Host header of a normal HTTP request implies that one is already in a privileged position. This issue was fixed in version 22.10.0rc1. There are no known workarounds.

CNA Affected

[
  {
    "vendor": "twisted",
    "product": "twisted",
    "versions": [
      {
        "version": ">= 0.9.4, < 22.10.0rc1",
        "status": "affected"
      }
    ]
  }
]