HTTP Request Smuggling Affecting tomcat-webapps package, versions <0:7.0.76-16.el7_9


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.24% (63rd percentile)

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  • Snyk IDSNYK-RHEL7-TOMCATWEBAPPS-7975639
  • published14 Sept 2024
  • disclosed24 Feb 2020

Introduced: 24 Feb 2020

CVE-2020-1935  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade RHEL:7 tomcat-webapps to version 0:7.0.76-16.el7_9 or higher.
This issue was patched in RHSA-2020:5020.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-webapps package and not the tomcat-webapps package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led 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.

References

CVSS Scores

version 3.1