CVE-2022-42252

High

Description

If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false (the default for 8.5.x only), Tomcat did not reject a request containing an invalid Content-Length header making a request smuggling attack possible if Tomcat was located behind a reverse proxy that also failed to reject the request with the invalid header.

SeverityHigh
CVSS7.5
Exploit probability—
ProductApache Tomcat
PublishedNov 1, 2022
First seenNov 1, 2022
Weakness typeCWE-444CWE-444

How to fix

Update
  • apache tomcat8.5.83, 9.0.68, 10.0.27, 10.1.1 or later
  • org.apache.tomcat.embed:tomcat-embed-core8.5.83, 9.0.68, 10.0.27, 10.1.1 or later
  • org.apache.tomcat:tomcat-coyote9.0.68, 10.0.27, 10.1.1 or later

Affected products

ProductAffected versionsFixed in
apache tomcat8.5.0 ≤ v < 8.5.83, 9.0.0 ≤ v < 9.0.68, 10.0.0 ≤ v < 10.0.27, 10.1.0 ≤ v < 10.1.18.5.83, 9.0.68, 10.0.27, 10.1.1
org.apache.tomcat.embed:tomcat-embed-coreMaven8.5.0 ≤ v < 8.5.83, 9.0.0-M1 ≤ v < 9.0.68, 10.0.0-M1 ≤ v < 10.0.27, 10.1.0-M1 ≤ v < 10.1.18.5.83, 9.0.68, 10.0.27, 10.1.1
org.apache.tomcat:tomcat-coyoteMaven9.0.0-M1 ≤ v < 9.0.68, 10.0.0-M1 ≤ v < 10.0.27, 10.1.0-M1 ≤ v < 10.1.19.0.68, 10.0.27, 10.1.1

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