Security bulletin: Rational Directory Server (Tivoli) is affected by Apache Tomcat vulnerabilities

Summary

The Apache Tomcat application server in installations of IBM Rational Directory Server (Tivoli) contains security vulnerabilities (CVE-2015-5345, CVE-2015-5346, CVE-2015-5351, CVE-2016-0706, CVE-2016-0714, CVE-2016-0763.

Vulnerability Details

One version of Rational Directory Server (Tivoli) is shipped with an Apache Tomcat application server that contains security vulnerabilities. Apache Tomcat has been updated to incorporate fixes for these vulnerabilities.

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

CVEID: CVE-2015-5345**
DESCRIPTION:**Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by an error when accessing a protected directory. By redirecting to the URL, an attacker could exploit this vulnerability to determine the presence of a directory. **CVSS Base Score: **5.3 **CVSS Temporal Score: **See <https://exchange.xforce.ibmcloud.com/vulnerabilities/110857&gt; 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)

CVEID: CVE-2015-5346**
DESCRIPTION:**Apache Tomcat could allow a remote attacker to hijack a valid user’s session, caused by the failure to recycle the requestedSessionSSL field when recycling the Request object to use for a new request. By persuading a victim to visit a specially-crafted link and log into the application, a remote attacker could exploit this vulnerability to hijack another user’s account and possibly launch further attacks on the system. **CVSS Base Score:**4.3 **CVSS Temporal Score: **See <https://exchange.xforce.ibmcloud.com/vulnerabilities/110854&gt; for the current score *CVSS Environmental Score: **Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

CVEID: CVE-2015-5351**
DESCRIPTION:**Apache Tomcat is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input by the index page. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to perform unauthorized actions. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities. **CVSS Base Score: **8.8 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/110859&gt; for the current score *CVSS Environmental Score: **Undefined **CVSS Vector: **(CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID: CVE-2016-0706**
DESCRIPTION:**Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by the loading of the StatusManagerServlet during the configuration of a security manager. An attacker could exploit this vulnerability to obtain deployed applications and other sensitive information. **CVSS Base Score:**5.3 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/110855&gt; 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)

CVEID: CVE-2016-0714**
DESCRIPTION:**Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by an error in multiple session persistence mechanisms. By placing a malicious object into a session, an attacker could exploit this vulnerability to bypass a security manager and possibly execute arbitrary code on the system. **CVSS Base Score: **7.3 **CVSS Temporal Score: **See <https://exchange.xforce.ibmcloud.com/vulnerabilities/110856&gt; 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:L/A:L)

CVEID: CVE-2016-0763**
DESCRIPTION:**Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by an error in the ResourceLinkFactory.setGlobalContext() method. By injecting malicious content, an attacker could exploit this vulnerability to read and write arbitrary data. **CVSS Base Score:**6.5 **CVSS Temporal Score: **See <https://exchange.xforce.ibmcloud.com/vulnerabilities/110858&gt; 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:L/A:N)

Affected Products and Versions

Rational Directory Server (Tivoli) version 5.2.0.2

Remediation/Fixes

You can upgrade Apache Tomcat after installing Rational Directory Server.

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 in <new_tomcat>/bin/catalina.bat from <old_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