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Apache Tomcat HTTP Request Smuggling Vulnerability (Jul 2021) - Windows

Information

Severity

Severity

Medium

Family

Family

Web Servers

CVSSv2 Base

CVSSv2 Base

6.4

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

2 years ago

Modified

Modified

2 years ago

Summary

Apache Tomcat is prone to an HTTP request smuggling vulnerability.

Insight

Insight

Apache Tomcat does 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 ignores the transfer-encoding header if the client declared it would only accept an HTTP/1.0 response. Tomcat honours the identify encoding and Tomcat does not ensure that, if present, the chunked encoding is the final encoding.

Affected Software

Affected Software

Apache Tomcat 8.5.x through 8.5.66, 9.0.0.M1 through 9.0.46 and 10.0.0-M1 through 10.0.6.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 8.5.68, 9.0.48, 10.0.7 or later.

Common Vulnerabilities and Exposures (CVE)