CVE-2021-33037CWE-444

CVE-2021-33037

Medium · published July 12, 2021

Patch now

High probability of exploitation

CVSS calls it medium at 5.3. It sits in the 99.5th percentile for exploit probability.

CVSS v3.1
5.3
EPSS
75%
Percentile
99.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.74667 · 99.5th percentile
Weakness
CWE-444 · Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Published
2021-07-12T19:15Z
Affected products (42)
ProductVersionsFixed in
apache/tomcat≥ 8.5.0, ≤ 8.5.66—
apache/tomcat> 9.0.0, ≤ 9.0.46—
apache/tomcat> 10.0.0, ≤ 10.0.6—
apache/tomeeall versions—
debian/debian_linuxall versions—
debian/debian_linuxall versions—
oracle/agile_product_lifecycle_managementall versions—
oracle/communications_cloud_native_core_policyall versions—
oracle/communications_cloud_native_core_service_communication_proxyall versions—
oracle/communications_diameter_signaling_router≥ 8.0.0.0, ≤ 8.5.0.2—
oracle/communications_instant_messaging_serverall versions—
oracle/communications_policy_managementall versions—
oracle/communications_pricing_design_centerall versions—
oracle/communications_session_report_manager≥ 8.0.0, ≤ 8.2.4.0—
oracle/communications_session_route_manager≥ 8.0.0, ≤ 8.2.4—
oracle/graph_server_and_client< 21.421.4
oracle/healthcare_translational_researchall versions—
oracle/hospitality_cruise_shipboard_property_management_systemall versions—
oracle/instantis_enterprisetrackall versions—
oracle/instantis_enterprisetrackall versions—
oracle/instantis_enterprisetrackall versions—
oracle/managed_file_transferall versions—
oracle/managed_file_transferall versions—
oracle/mysql_enterprise_monitor≤ 8.0.25—
oracle/sd-wan_edgeall versions—
oracle/sd-wan_edgeall versions—
oracle/secure_global_desktopall versions—
oracle/utilities_testing_acceleratorall versions—
oracle/utilities_testing_acceleratorall versions—
oracle/utilities_testing_acceleratorall versions—
mcafee/epolicy_orchestrator< 5.10.05.10.0
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
mcafee/epolicy_orchestratorall versions—
References (32)
https://kc.mcafee.com/corporate/index?page=content&id=SB10366 · [email protected]https://lists.apache.org/thread.html/r290aee55b72811fd19e75ac80f6143716c079170c5671b96932ed44b%40%3Ccommits.tomee.apache.org%3E · [email protected]https://lists.apache.org/thread.html/r40f921575aee8d7d34e53182f862c45cbb8f3d898c9d4e865c2ec262%40%3Ccommits.tomee.apache.org%3E · [email protected]https://lists.apache.org/thread.html/r612a79269b0d5e5780c62dfd34286a8037232fec0bc6f1a7e60c9381%40%3Cannounce.tomcat.apache.org%3E · [email protected]https://lists.apache.org/thread.html/rc6ef52453bb996a98cb45442871a1db56b7c349939e45d829bf9ae37%40%3Ccommits.tomee.apache.org%3E · [email protected]https://lists.apache.org/thread.html/rd0dfea39829bc0606c936a16f6fca338127c86c0a1083970b45ac8d2%40%3Ccommits.tomee.apache.org%3E · [email protected]https://lists.apache.org/thread.html/re01e7e93154e8bdf78a11a23f9686427bd3d51fc6e12c508645567b7%40%3Ccommits.tomee.apache.org%3E · [email protected]https://lists.apache.org/thread.html/rf1b54fd3f52f998ca4829159a88cc4c23d6cef5c6447d00948e75c97%40%3Ccommits.tomee.apache.org%3E · [email protected]https://lists.debian.org/debian-lts-announce/2021/08/msg00009.html · [email protected]https://security.gentoo.org/glsa/202208-34 · [email protected]https://security.netapp.com/advisory/ntap-20210827-0007/ · [email protected]https://www.debian.org/security/2021/dsa-4952 · [email protected]https://www.oracle.com//security-alerts/cpujul2021.html · [email protected]https://www.oracle.com/security-alerts/cpuapr2022.html · [email protected]https://www.oracle.com/security-alerts/cpujan2022.html · [email protected]https://www.oracle.com/security-alerts/cpuoct2021.html · [email protected]https://kc.mcafee.com/corporate/index?page=content&id=SB10366 · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r290aee55b72811fd19e75ac80f6143716c079170c5671b96932ed44b%40%3Ccommits.tomee.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r40f921575aee8d7d34e53182f862c45cbb8f3d898c9d4e865c2ec262%40%3Ccommits.tomee.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r612a79269b0d5e5780c62dfd34286a8037232fec0bc6f1a7e60c9381%40%3Cannounce.tomcat.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rc6ef52453bb996a98cb45442871a1db56b7c349939e45d829bf9ae37%40%3Ccommits.tomee.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rd0dfea39829bc0606c936a16f6fca338127c86c0a1083970b45ac8d2%40%3Ccommits.tomee.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/re01e7e93154e8bdf78a11a23f9686427bd3d51fc6e12c508645567b7%40%3Ccommits.tomee.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rf1b54fd3f52f998ca4829159a88cc4c23d6cef5c6447d00948e75c97%40%3Ccommits.tomee.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/08/msg00009.html · af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-34 · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210827-0007/ · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4952 · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com//security-alerts/cpujul2021.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuapr2022.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2022.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.html · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 12 JUL 14:55Z
    Incorrect Transfer-Encoding handling with HTTP/1.0
    cvelistv5