Cross-site Scripting (XSS) Affecting python27-twisted-web package, versions <0:8.2.0-6.8.amzn1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.59% (76th percentile)

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  • Snyk IDSNYK-AMZN201803-PYTHON27TWISTEDWEB-5414820
  • published6 Apr 2023
  • disclosed26 Oct 2022

Introduced: 26 Oct 2022

CVE-2022-39348  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 python27-twisted-web to version 0:8.2.0-6.8.amzn1 or higher.
This issue was patched in ALAS-2023-1717.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python27-twisted-web package and not the python27-twisted-web package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1