Skip to page content

AEGLIX MIND

Intelligence for Africa and the Gulf

AEGLIX vulnerability intelligence

CVE-2020-1938

CRITICAL · CVSS 9.8 · Analyzed

Published: 2020-02-24 · Updated: 2026-08-25 · Source: NVD

Vulnerability overview

When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that may be surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected (and recommended in the security guide) that this Connector would be disabled if not required. This vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the web application - processing any file in the web application as a JSP Further, if the web application allowed file upload and stored those files within the web application (or the attacker was able to control the content of the web application by some other means) then this, along with the ability to process a file as a JSP, made remote code execution possible. It is important to note that mitigation is only required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.

Severity and scoring

CVSS score
9.8 · CRITICAL
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
NVD-CWE-Other

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Apache · Tomcat
Added to catalog
2022-03-03
Required action
Apply updates per vendor instructions.
CISA remediation due date
2022-03-17

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:a:apache:geode:1.12.0:*:*:*:*:*:*:*

  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

    From (inclusive): 7.0.0

    Before (exclusive): 7.0.100

  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

    From (inclusive): 8.5.0

    Before (exclusive): 8.5.51

  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*

    From (inclusive): 9.0.0

    Before (exclusive): 9.0.31

  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:agile_engineering_data_management:6.2.1.0:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.3:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.5:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:agile_product_lifecycle_management:9.3.6:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:communications_element_manager:8.1.1:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:communications_element_manager:8.2.0:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:communications_element_manager:8.2.1:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:communications_instant_messaging_server:10.0.1.4.0:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:health_sciences_empirica_inspections:1.0.1.2:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:health_sciences_empirica_signal:7.3.3:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:*

    From (inclusive): 17.1

    Through (inclusive): 17.3

  • cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*

    Through (inclusive): 4.0.12

  • cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*

    From (inclusive): 8.0.0

    Through (inclusive): 8.0.20

  • cpe:2.3:a:oracle:siebel_ui_framework:*:*:*:*:*:*:*:*

    Through (inclusive): 20.5

  • cpe:2.3:a:oracle:transportation_management:6.3.7:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:workload_manager:12.2.0.1:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:workload_manager:18c:*:*:*:*:*:*:*

  • cpe:2.3:a:oracle:workload_manager:19c:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

  • cpe:2.3:a:blackberry:good_control:*:*:*:*:*:*:*:*

    Through (inclusive): 5.2.58.38

  • cpe:2.3:a:blackberry:workspaces_server:7.0.1:*:*:*:*:*:*:*

  • cpe:2.3:a:blackberry:workspaces_server:7.1.2:*:*:*:*:*:*:*

  • cpe:2.3:a:blackberry:workspaces_server:8.1.0:*:*:*:*:*:*:*

  • cpe:2.3:a:blackberry:workspaces_server:9.0:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:*

  • cpe:2.3:a:netapp:oncommand_system_manager:*:*:*:*:*:*:*:*

    From (inclusive): 3.0.0

    Through (inclusive): 3.1.3

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

Back to CVE intelligence