SUPPORT COMMUNICATION - SECURITY BULLETIN
Potential Security Impact: File content disclosure / remote code execution in Apache Tomcat
A vulnerability in Apache Tomcat was addressed by Operations Bridge Reporter. 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. In Apache Tomcat 9.0.0.M1 to 126.96.36.199, 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 defense-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.
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
Operations Bridge Reporter 10.40 and lower versions.
CVSS Version 3.0 and Version 2.0 Base Metrics
V3 Base Score
V2 Base Score
Micro Focus provides the following solution to resolve the vulnerability for the impacted versions of Operations Bridge Reporter 10.40 and lower versions:
Operations Bridge Reporter (OBR) does not use âApache Tomcat AJP Portâ. As per the SAP BusinessObjects recommendation in order to keep the environment safe, you must make changes in server.xml and disable APJ connector. Follow these steps:
Steps for Windows OBR SAP BusinessObjects server:
- Log on to Windows OBR BO server.
- Go to the location %PMDB_HOME%\ BOWebServer\conf\ and open the server.xml file.
- Locate the following line:<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
- Edit the line as follows and save the file:<!-- <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> -->
- Open the Run window and type âservices.mscâ
- Scroll down to locate âBusiness Objects Webserverâ.
- Right-click and select Stop. Wait for few minutes for the service to stop.
- Right-click and select Start.
Steps for Linux OBR SAP BusinessObjects server:
- Log on to Linux OBR BO server as root user.
- Go to the location $PMDB_HOME/BOWebServer/conf/ and open the server.xml file.
- Locate the following lin <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
- Edit the line as follows and save the file: <!-- <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> -->
- Run the command: sh /opt/HP/BSM//PMDB/BOWebServer/bin/shutdown.sh
- Wait for a few minutes for the service to stop.
- Run the command: sh /opt/HP/BSM//PMDB/BOWebServer/bin/startup.sh
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