Kurz gesagt
- CVE-2021-33037 ist eine Schwachstelle (MITTEL (CVSS 5.3)) in org.apache.tomcat:tomcat, tomcat (apache), tomee (apache).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 74.7%, höher als bei 99.5% aller Schwachstellen.
- Abhilfe: auf 10.0.7, 8.5.68, 9.0.48, 5.10.0 oder neuer aktualisieren.
Description
Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
NVD description
Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
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