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Mend.io Vulnerability Database

CVE-2021-33037

Good to know:

Date: July 12, 2021

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.

Language: Java

Severity Score

5.3

Related Resources (39)

Url: https://lists.apache.org/thread.html/r290aee55b72811fd19e75ac80f6143716c079170c5671b96932ed44b%40%3Ccommits.tomee.apache.org%3E

Url: https://lists.apache.org/thread.html/r40f921575aee8d7d34e53182f862c45cbb8f3d898c9d4e865c2ec262@%3Ccommits.tomee.apache.org%3E

Url: https://tomcat.apache.org/security-8.html

Url: https://github.com/apache/tomcat/commit/506134f957a4be2c5b4a9334f7b3435fc954dbc1

Url: https://lists.apache.org/thread.html/rc6ef52453bb996a98cb45442871a1db56b7c349939e45d829bf9ae37%40%3Ccommits.tomee.apache.org%3E

Url: https://github.com/apache/tomcat

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

Url: https://lists.apache.org/thread/kovg1bft77xo34ksrcskh5nl50p69962

Url: https://github.com/apache/tomcat/commit/eee0d024c1b3171560c92eaba79dd6eb8eb11bcd

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

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

Url: https://lists.apache.org/thread.html/rc6ef52453bb996a98cb45442871a1db56b7c349939e45d829bf9ae37@%3Ccommits.tomee.apache.org%3E

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

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

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

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

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

Url: https://github.com/apache/tomcat/commit/05f9e8b00f5d9251fcd3c95dcfd6cf84177f46c8

Url: https://tomcat.apache.org/security-10.html

Url: https://security.gentoo.org/glsa/202208-34

Url: https://lists.apache.org/thread.html/r40f921575aee8d7d34e53182f862c45cbb8f3d898c9d4e865c2ec262%40%3Ccommits.tomee.apache.org%3E

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

Url: https://lists.apache.org/thread.html/re01e7e93154e8bdf78a11a23f9686427bd3d51fc6e12c508645567b7@%3Ccommits.tomee.apache.org%3E

Url: https://lists.apache.org/thread.html/re01e7e93154e8bdf78a11a23f9686427bd3d51fc6e12c508645567b7%40%3Ccommits.tomee.apache.org%3E

Url: https://tomcat.apache.org/security-9.html

Url: https://lists.apache.org/thread.html/rf1b54fd3f52f998ca4829159a88cc4c23d6cef5c6447d00948e75c97@%3Ccommits.tomee.apache.org%3E

Url: https://github.com/apache/tomcat/commit/19d11556d0db99df291df33605f137976d152475

Url: https://github.com/apache/tomcat/commit/a2c3dc4c96168743ac0bab613709a5bbdaec41d0

Url: https://lists.apache.org/thread.html/rd0dfea39829bc0606c936a16f6fca338127c86c0a1083970b45ac8d2%40%3Ccommits.tomee.apache.org%3E

Url: https://github.com/apache/tomcat/commit/45d70a86a901cbd534f8f570bed2aec9f7f7b88e

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-33037

Url: https://github.com/apache/tomcat/commit/8874fa02e9b36baa9ca6b226c0882c0190ca5a02

Url: https://lists.apache.org/thread.html/r290aee55b72811fd19e75ac80f6143716c079170c5671b96932ed44b@%3Ccommits.tomee.apache.org%3E

Url: https://github.com/apache/tomcat/commit/3202703e6d635e39b74262e81f0cb4bcbe2170dc

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

Url: https://github.com/apache/tomcat/commit/da0e7cb093cf68b052d9175e469dbd0464441b0b

Url: https://lists.apache.org/thread.html/rf1b54fd3f52f998ca4829159a88cc4c23d6cef5c6447d00948e75c97%40%3Ccommits.tomee.apache.org%3E

Url: https://lists.apache.org/thread.html/rd0dfea39829bc0606c936a16f6fca338127c86c0a1083970b45ac8d2@%3Ccommits.tomee.apache.org%3E

Url: https://www.mend.io/vulnerability-database/CVE-2021-33037

Severity Score

5.3

Weakness Type (CWE)

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CWE-444

CVSS v3.1

Base Score:	5.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	LOW
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2021-33037

Good to know:

Date: July 12, 2021

Language: Java

Severity Score

Related Resources (39)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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