KM03635668 - Service Manager. Apache Tomcat vulnerability, CVE-2020-1938

SUPPORT COMMUNICATION - SECURITY BULLETIN

Potential Security Impact: File content disclosure / remote code execution in Apache Tomcat

VULNERABILITY SUMMARY

A vulnerability in Apache Tomcat was addressed by Service Manager. The vulnerability could be exploited to file content disclosure of the web application or remote code execution.

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. For more details, please reference the CVE details at the following link.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1938

CVE References:

CVE-2020-1938

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

Service Manager Server: 9.40, 9.41, 9.50, 9.51, 9.52, 9.60, 9.61, 9.62, 9.63, 9.64
Service Manager Knowledge Management: 9.40, 9.41, 9.50, 9.51, 9.52, 9.60, 9.61, 9.62, 9.63, 9.64
Service Manager Release Control: 9.50, 9.60
Service Manager SAP Adaptor: 1.4

CVSS Version 3.0 and Version 2.0 Base Metrics

RESOLUTION:

Micro Focus has made the following mitigation information available to resolve the vulnerability for the impacted versions of Service Manager components:

        Perform the following steps to disable the AJP connector.

1. Locate the server.xml file in the embedded Tomcat.

  For Server:  <Server Installation directory>/RUN/tomcat/conf/server.xml

  For Knowledge Management:  <KM installation directory>/tomcat/conf/server.xml

  For Release Control: <RC installation directory>/servers/<Server Node>/conf/server.xml

  For SAP adapter: <SAP adapter installation directory>/tomcat/conf/server.xml

2. Open server.xml in a text editor and comment the AJP connector

 <!-- <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />-->

3. Save the change.

4. Restart the component.

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