CVE-2021-33037

Aliases:GHSA-4vww-mc66-62m6BIT-tomcat-2021-33037
Advisory lineage Upstream: 0 Downstream: 16
Modified
Published: 12 Jul 2021, 14:55
Last modified:03 Aug 2024, 23:42

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
1.86% LOW
2% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Jul 2021, 14:55
Published
Vulnerability first disclosed
03 Aug 2024, 23:42
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 1.86%• Percentile: 83%

Techniques & Countermeasures

  • CWE-444•Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

    The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

Affected Systems

  • apache software foundation•apache tomcat

    Apache Tomcat 10 10.0.0-M1 to 10.0.6 | Apache Tomcat 9 9.0.0.M1 to 9.0.46 | Apache Tomcat 8 8.5.0 to 8.5.66

  • Unknown•Tomcat

    ≥ 8.5.0, ≤ 8.5.66 | > 9.0.0, ≤ 9.0.46 | > 10.0.0, ≤ 10.0.6

  • apache•tomee

    8.0.6

  • debian•debian_linux

    9.0 | 10.0

  • org.apache.tomcat•tomcat

    ≥ 10.0.0-M1, < 10.0.7 | ≥ 9.0.0-M1, < 9.0.48 | ≥ 8.5.0, < 8.5.68

  • mcafee•epolicy_orchestrator

    < 5.10.0 | 5.10.0 | 5.10.0:update_1 | 5.10.0:update_10 | 5.10.0:update_2 | 5.10.0:update_3 | 5.10.0:update_4 | 5.10.0:update_5 | 5.10.0:update_6 | 5.10.0:update_7 | 5.10.0:update_8 | 5.10.0:update_9

  • oracle•agile_plm

    9.3.6

  • oracle•communications_cloud_native_core_policy

    1.14.0

  • oracle•communications_cloud_native_core_service_communication_proxy

    1.14.0

  • oracle•communications_diameter_signaling_router

    ≥ 8.0.0.0, ≤ 8.5.0.2

  • oracle•communications_instant_messaging_server

    10.0.1.5.0

  • oracle•communications_policy_management

    12.5.0

  • oracle•communications_pricing_design_center

    12.0.0.3.0

  • 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

    < 21.4

  • oracle•healthcare_translational_research

    4.1.0

  • oracle•hospitality_cruise_shipboard_property_management_system

    20.1.0

  • oracle•instantis_enterprisetrack

    17.1 | 17.2 | 17.3

  • oracle•managed_file_transfer

    12.2.1.3.0 | 12.2.1.4.0

  • oracle•mysql_enterprise_monitor

    ≤ 8.0.25

  • oracle•sd-wan_edge

    9.0 | 9.1

  • oracle•secure_global_desktop

    5.6

  • oracle•utilities_testing_accelerator

    6.0.0.1.1 | 6.0.0.2.2 | 6.0.0.3.1

References (38)