CVE-2021-33037

medium

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.

References

https://lists.apache.org/thread.html/r612a79269b0d5e5780c62dfd34286a8037232fec0bc6f1a7e60c9381%40%3Cannounce.tomcat.apache.org%3E

https://www.oracle.com//security-alerts/cpujul2021.html

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://lists.debian.org/debian-lts-announce/2021/08/msg00009.html

https://www.debian.org/security/2021/dsa-4952

https://security.netapp.com/advisory/ntap-20210827-0007/

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://www.oracle.com/security-alerts/cpuoct2021.html

https://kc.mcafee.com/corporate/index?page=content&id=SB10366

https://www.oracle.com/security-alerts/cpujan2022.html

https://www.oracle.com/security-alerts/cpuapr2022.html

Details

Source: MITRE

Published: 2021-07-12

Updated: 2022-05-12

Type: CWE-444

Risk Information

CVSS v2

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM