Security Bulletin: Security vulnerabilities in Apache Tomcat in Rational DOORS Web Access

Summary

The Apache Tomcat application server in installations of IBM Rational DOORS Web Access version contains security vulnerabilities.

Vulnerability Details

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Some versions of Rational DOORS Web Access are shipped with an Apache Tomcat application server that contains security vulnerabilities. Apache Tomcat has been updated to incorporate fixes for these vulnerabilities.

Rational DOORS Web Access is affected by the following vulnerabilities:

CVE ID: CVE-2013-4322** **
Description: Apache Tomcat is vulnerable to a denial of service, caused by an incomplete fix related to the processing of chunked transfer coding without properly handling a large total amount of chunked data or whitespace characters in an HTTP header value. A remote attacker could exploit this vulnerability to cause a denial of service.

CVSS Base Score: 5 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/91625&gt; for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:L/AU:N/C:N/I:N/A:P)

CVE ID: CVE-2013-4590 ** **
Description: Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by an XML External Entity Injection (XXE) error when running untrusted web applications. By sending a specially-crafted request, an attacker could exploit this vulnerability to read arbitrary files and obtain sensitive information.

CVSS Base Score: 4.3 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/91424&gt; for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:M/AU:N/C:P/I:N/A:N)

CVE ID: CVE-2014-0096 ** **
Description: Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by an XML External Entity Injection (XXE) error when processing XML data by the default server. By sending specially-crafted XML data, an attacker could exploit this vulnerability to obtain sensitive information.

CVSS Base Score: 4.3 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/93367&gt; for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:M/AU:N/C:P/I:N/A:N)

CVE ID: CVE-2014-0099 ** **
Description: Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by the failure to check for overflows when parsing content length headers. By sending specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information.

CVSS Base Score: 5 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/93369&gt; for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:L/AU:N/C:P/I:N/A:N)

CVE ID: CVE-2014-0119 ** **
Description: Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by the replacement of the XML parsers used to process XSLTs for the default servlet. An attacker could exploit this vulnerability using a specially-crafted application to obtain sensitive information.

CVSS Base Score: 5 **CVSS Temporal Score:**See <https://exchange.xforce.ibmcloud.com/vulnerabilities/93368&gt; for the current score *CVSS Environmental Score:**Undefined CVSS Vector: (AV:N/AC:L/AU:N/C:P/I:N/A:N)

Affected Products and Versions

Rational DOORS Web Access version 9.6.0, 9.5.2.x, 9.5.1.x, 9.5.0.x, 1.5.0.x, 1.4.0.4:
(Note that these two vulnerabilities are not applicable in version 9.6.0.1 and later.)

• CVE-2013-4322 with a CVSS of 4.3
• CVE-2013-4590 with a CVSS of 4.3

Rational DOORS Web Access version 9.6.0.x, 9.5.2.x, 9.5.1.x, 9.5.0.x, 1.5.0.x, 1.4.0.4:
(Note that these three vulnerabilities are still applicable in version 9.6.0.1 and later.)

• CVE-2014-0096 with a CVSS of 4.3
• CVE-2014-0099 with a CVSS of 5
• CVE-2014-0119 with a CVSS of 5

Remediation/Fixes

You can upgrade Apache Tomcat after installing Rational DOORS Web Access.

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

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 DOORS Web Access.

The following table presents Rational DOORS Web Access versions and the compatible versions of Apache Tomcat.

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

Procedure:

1. Go to the Rational DOORS Web Access installation directory.

For example:
`C:\Program Files (x86)\IBM\Rational\DOORS Web Access\9.version

`
2. Rename the server directory toserver.orig.

3. Extract the Apache Tomcat server archive that was supplied by Support to ./server in the Rational DOORS Web Access installation directory.

4. Copy your ./server.orig/festival directory to**./server/festival**.

5. Copy the ./server.orig/conf/server.xml file to**./server/conf/server.xml**.

6. Copy ./server.orig/webapps/*.war to**./server/webapps**.

7. Optional: Copy any customized files from the**./server.origdirectory to./server**.

8. UNIX systems only: Run the**./configure-festival.sh** command, as described in the help topic Installing the web access server and the web access broker on Linux or Solaris systems.

Workarounds and Mitigations

None