CVE-2020-13935

Description

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

CVSS breakdown

Affected products

• apache / Tomcat7.0.27 – 7.0.104
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat9.0.0 – 9.0.0
• apache / Tomcat10.0.0 – 10.0.0
• apache / Tomcat10.0.0 – 10.0.0
• apache / Tomcat10.0.0 – 10.0.0
• apache / Tomcat10.0.0 – 10.0.0
• apache / Tomcat10.0.0 – 10.0.0
• apache / Tomcat10.0.0 – 10.0.0
• Canonical / Ubuntu Linux20.04 – 20.04
• Canonical / Ubuntu Linux16.04 – 16.04
• debian / debian_linux9.0 – 9.0
• debian / debian_linux10.0 – 10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.9.0 – 5.9.0
• McAfee / epolicy_orchestrator5.9.1 – 5.9.1
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• McAfee / epolicy_orchestrator5.10.0 – 5.10.0
• NETAPP / oncommand_system_manager3.0.0 – 3.1.3
• openSUSE / Leap15.1 – 15.1
• openSUSE / Leap15.2 – 15.2
• oracle / agile_engineering_data_management6.2.1.0 – 6.2.1.0
• oracle / agile_product_lifecycle_management9.3.3 – 9.3.3
• oracle / agile_product_lifecycle_management9.3.5 – 9.3.5
• oracle / agile_product_lifecycle_management9.3.6 – 9.3.6
• oracle / blockchain_platform21.1.2
• oracle / commerce_guided_search11.3.2 – 11.3.2
• oracle / communications_cloud_native_core_policy1.14.0 – 1.14.0
• oracle / communications_instant_messaging_server10.0.1.5.0 – 10.0.1.5.0
• oracle / fmw_platform12.2.1.4.0 – 12.2.1.4.0
• oracle / fmw_platform12.2.1.3.0 – 12.2.1.3.0
• oracle / instantis_enterprisetrack17.2 – 17.2
• oracle / instantis_enterprisetrack17.3 – 17.3
• oracle / instantis_enterprisetrack17.1 – 17.1
• oracle / managed_file_transfer12.2.1.3.0 – 12.2.1.3.0
• oracle / managed_file_transfer12.2.1.4.0 – 12.2.1.4.0
• oracle / MySQL Enterprise Monitor8.0.21
• oracle / Siebel UI Framework20.12
• oracle / workload_manager19c – 19c
• oracle / workload_manager18c – 18c
• oracle / workload_manager12.2.0.1 – 12.2.0.1

Exploits & proofs of concept

• nucleiApache Tomcat WebSocket Frame Payload Length Validation Denial of Serviceby sttlr

References

• MAILING_LISThttps://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651%40%3Cannounce.tomcat.apache.org%3E
• VENDOR_ADVISORYhttps://www.debian.org/security/2020/dsa-4727
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2020/07/msg00017.html
• MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html
• MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html
• VENDOR_ADVISORYhttps://usn.ubuntu.com/4448-1/
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuoct2020.html
• MISChttps://security.netapp.com/advisory/ntap-20200724-0003/
• MISChttps://kc.mcafee.com/corporate/index?page=content&id=SB10332
• VENDOR_ADVISORYhttps://usn.ubuntu.com/4596-1/
• MAILING_LISThttps://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff0bc7904d44b651e50%40%3Cusers.tomcat.apache.org%3E
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpujan2021.html
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuApr2021.html
• VENDOR_ADVISORYhttps://www.oracle.com//security-alerts/cpujul2021.html
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuoct2021.html
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpujan2022.html
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2022.html