HTTP Request Smuggling Affecting tomcat package, versions [7.0.98,7.0.100)[8.5.48,8.5.51)[9.0.28,9.0.31)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.35% (72nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TOMCAT-2382354
  • published26 Jan 2022
  • disclosed24 Feb 2020
  • creditUnknown

Introduced: 24 Feb 2020

CVE-2019-17569  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade tomcat to version 7.0.100, 8.5.51, 9.0.31 or higher.

Overview

Affected versions of this package are vulnerable to HTTP Request Smuggling. The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.

CVSS Scores

version 3.1