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Security Advisories: GSA_kwCzR0hTQS12ZzQ2LTJycmotMzY0N84AAvjW
Twisted vulnerable to NameVirtualHost Host header injection
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.
Example configuration:
from twisted.web.server import Site
from twisted.web.vhost import NameVirtualHost
from twisted.internet import reactor
resource = NameVirtualHost()
site = Site(resource)
reactor.listenTCP(8080, site)
reactor.run()
Output:
❯ curl -H"Host:<h1>HELLO THERE</h1>" http://localhost:8080/
<html>
<head><title>404 - No Such Resource</title></head>
<body>
<h1>No Such Resource</h1>
<p>host b'<h1>hello there</h1>' not in vhost map</p>
</body>
</html>
This vulnerability was introduced in f49041bb67792506d85aeda9cf6157e92f8048f4 and first appeared in the 0.9.4 release.
Permalink: https://github.com/advisories/GHSA-vg46-2rrj-3647JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS12ZzQ2LTJycmotMzY0N84AAvjW
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 1 year ago
Updated: about 1 year ago
CVSS Score: 5.4
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Identifiers: GHSA-vg46-2rrj-3647, CVE-2022-39348
References:
- https://github.com/twisted/twisted/security/advisories/GHSA-vg46-2rrj-3647
- https://github.com/twisted/twisted/commit/f2f5e81c03f14e253e85fe457e646130780db40b
- https://github.com/twisted/twisted/commit/f49041bb67792506d85aeda9cf6157e92f8048f4
- https://nvd.nist.gov/vuln/detail/CVE-2022-39348
- https://lists.debian.org/debian-lts-announce/2022/11/msg00038.html
- https://security.gentoo.org/glsa/202301-02
- https://github.com/advisories/GHSA-vg46-2rrj-3647
Blast Radius: 21.2
Affected Packages
pypi:twisted
Dependent packages: 135Dependent repositories: 8,515
Downloads: 4,564,588 last month
Affected Version Ranges: >= 0.9.4, < 22.10.0rc1
Fixed in: 22.10.0rc1
All affected versions: 1.0.1, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.0, 1.1.1, 1.2.0, 2.1.0, 2.4.0, 2.5.0, 8.0.0, 8.0.1, 8.1.0, 8.2.0, 9.0.0, 10.0.0, 10.1.0, 10.2.0, 11.0.0, 11.1.0, 12.0.0, 12.1.0, 12.2.0, 12.3.0, 13.0.0, 13.1.0, 13.2.0, 14.0.0, 14.0.1, 14.0.2, 15.0.0, 15.1.0, 15.2.0, 15.2.1, 15.3.0, 15.4.0, 15.5.0, 16.0.0, 16.1.0, 16.1.1, 16.2.0, 16.3.0, 16.3.1, 16.3.2, 16.4.0, 16.4.1, 16.5.0, 16.6.0, 17.1.0, 17.5.0, 17.9.0, 18.4.0, 18.7.0, 18.9.0, 19.2.0, 19.2.1, 19.7.0, 19.10.0, 20.3.0, 21.2.0, 21.7.0, 22.1.0, 22.2.0, 22.4.0, 22.8.0
All unaffected versions: 22.10.0, 23.8.0, 23.10.0, 24.3.0