Security bulletin: Rational Directory Server (Tivoli) is affected by an Apache Tomcat vulnerability (CVE-2015-5174)

Summary

The Apache Tomcat application server in installations of IBM Rational Directory Server (Tivoli) contains a security vulnerability (CVE-2015-5174).

Vulnerability Details

A version of Rational Directory Server (Tivoli) is shipped with an Apache Tomcat application server that contains a security vulnerability. Apache Tomcat has been updated to incorporate a fix for this vulnerability.

Rational Directory Server (Tivoli) is affected by the following vulnerability:

CVEID: CVE-2015-5174**
DESCRIPTION:**Apache Tomcat could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing “dot dot” sequences (/…/) in the getResource(), getResourceAsStream() and getResourcePaths() ServletContext methods to obtain a directory listing for the directory. **CVSS Base Score: **5.3 **CVSS Temporal Score: **See https://exchange.xforce.ibmcloud.com/vulnerabilities/110860 for the current score *CVSS Environmental Score:**Undefined **CVSS Vector: **(CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Rational Directory Server (Tivoli) version 5.2.0.2

Remediation/Fixes

You can upgrade Apache Tomcat in an existing installation of Rational Directory Server. An upgrade of Rational Directory Server is not required for this fix.

To obtain the updated version of the Apache Tomcat, contact IBM Support.

The following table presents Rational Directory Server versions and the released versions of Apache Tomcat.

Support can help identify the latest Apache Tomcat that is compatible with your operating system and platform. Publicly available versions of the Apache Tomcat are not supported with Rational Directory Server.

After you obtain the Apache Tomcat update from Support do these steps:
**** Procedure:

1. Go to the Rational Directory Server installation directory.
   For example: C:\Program Files\IBM\Rational\RDS_5.2.0.2
2. Locate the Start_RDAWebServer.bat and change the path to new Tomcat version.
   For Windows example: “C:\Program Files\IBM\Rational\RDS_5.2.0.2\webAccessServer\apache-tomcat-6.0.45\bin”
   For Linux example : “/var/IBM/Rational?RDS_5.2.0.2/WebAccessServer/apache-tomcat-6.0.45”
3. Copy ./<old_tomcat>/webapps/*.war to ./<new tomcat>/webapps.
4. Copy the following files from <old_tomcat>/bin to <new tomcat>/bin:

• GroupSchema.xsd
• tdsbuild.property
• TDSConfiguration.xml
• TDSResource_en_US.xml
• UserSchema.xsd
• Copy the JRE path from <old_tomcat>/bin/catalina.bat to <new_tomcat>/bin/catalina.bat.
  For Linux update the JRE path in <new_tomcat>/bin/catalina.sh from <old_tomcat>/bin/catalina.sh.
• For Linux Only: Go to the <new_tomcat>/bin and execute the command chmod +x *.sh in terminal.

Workarounds and Mitigations

None