Security Bulletin: Security vulnerabilities in Apache Tomcat affect multiple IBM Rational products based on IBM's Jazz technology

Summary

The Jazz Team Server is shipped with/or supports versions of the Apache Tomcat web server which contain security vulnerabilities that could potentially impact the following IBM Rational products deployed on Apache Tomcat: Collaborative Lifecycle Management (CLM), Rational DOORS Next Generation (RDNG), Rational Engineering Lifecycle Manager (RELM), Rational Team Concert (RTC), Rational Quality Manager (RQM), Rational Rhapsody Design Manager (Rhapsody DM), and Rational Software Architect Design Manager (RSA DM).

Vulnerability Details

CVEID: CVE-2017-6056**
DESCRIPTION:** Apache Tomcat is vulnerable to a denial of service, caused by a programming error in the servlet and JSP engine. A remote attacker could exploit this vulnerability to cause the server to enter into an infinite loop.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122312 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2016-8745**
DESCRIPTION:** Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by the improper handling of the send file code for the NIO HTTP connector when the Connector code for Tomcat 8.5.x is refactored. An attacker could exploit this vulnerability to obtain the session ID and the response body.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119642 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-2017-5647**
DESCRIPTION:** Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by an error in the processing of pipelined requests in send file. An attacker could exploit this vulnerability to obtain sensitive information from the wrong response.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/124400 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-2017-5648**
DESCRIPTION:** Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by the failure to use the appropriate facade object by certain application listener calls. An attacker could exploit this vulnerability to access and modify data on the system.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/124399 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

**** CVEID: CVE-2017-5664**
DESCRIPTION:** Apache Tomcat could allow a remote attacker to bypass security restrictions, caused by the improper handling of specific HTTP request methods for static error pages by the Default Servlet error page mechanism. By sending a specially crafted GET request, an attacker could exploit this vulnerability to bypass HTTP method restrictions and cause the deletion or replacement of the target error page.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/126962 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)

Affected Products and Versions

Rational Collaborative Lifecycle Management 3.0.1 - 6.0.4

Rational Quality Manager 4.0 - 4.0.7
Rational Quality Manager 5.0 - 5.0.2
Rational Quality Manager 6.0 - 6.0.4

Rational Team Concert 4.0 - 4.0.7
Rational Team Concert 5.0 - 5.0.2
Rational Team Concert 6.0 - 6.0.4

Rational DOORS Next Generation 4.0 - 4.0.7
Rational DOORS Next Generation 5.0 - 5.0.2
Rational DOORS Next Generation 6.0 - 6.0.4

Rational Engineering Lifecycle Manager 4.0.3 - 4.0.7
Rational Engineering Lifecycle Manager 5.0 - 5.0.2
Rational Engineering Lifecycle Manager 6.0 - 6.0.4

Rational Rhapsody Design Manager 4.0 - 4.0.7
Rational Rhapsody Design Manager 5.0 - 5.0.2
Rational Rhapsody Design Manager 6.0 - 6.0.4

Rational Software Architect Design Manager 4.0 - 4.0.7
Rational Software Architect Design Manager 5.0 - 5.0.2
Rational Software Architect Design Manager 6.0 - 6.0.1

Remediation/Fixes

Step 1.
Apply the lates ifix to your installed product version:

For the 6.0 - 6.0.3 releases, upgrade to version 6.0.3 iFix5 or later

• Rational Collaborative Lifecycle Management 6.0.3 iFix5
• Rational Team Concert 6.0.3 iFix5
• Rational Quality Manager 6.0.3 iFix5
• Rational DOORS Next Generation 6.0.3 iFix5
• Rational Software Architect Design Manager:_ _Upgrade to version 6.0.3 and install server from CLM 6.0.3 iFix5
• Rational Rhapsody Design Manager:_ _Upgrade to version 6.0.3 and install server from CLM 6.0.3 iFix5
• Rational Engineering Lifecycle Manager:_ _Upgrade to version 6.0.3 and install server from CLM 6.0.3 iFix5

For the 6.0 - 6.0.2 releases, upgrade to version 6.0.2 iFix11 or later

• Rational Collaborative Lifecycle Management 6.0.2 iFix11

• Rational Team Concert 6.0.2 iFix11

• Rational Quality Manager 6.0.2 iFix11

• Rational DOORS Next Generation 6.0.2 iFix11

• Rational Software Architect Design Manager:_ _Upgrade to version 6.0.2 and install server from CLM 6.0.2 iFix11

• Rational Rhapsody Design Manager:_ _Upgrade to version 6.0.2 and install server from CLM 6.0.2 iFix11

• Rational Engineering Lifecycle Manager:_ _Upgrade to version 6.0.2 and install server from CLM 6.0.2 iFix11

• For the 5.x releases, upgrade to version 5.0.2 iFix22 or later

• Rational Collaborative Lifecycle Management 5.0.2 iFix22

• Rational Team Concert 5.0.2 iFix22

• Rational Quality Manager 5.0.2 iFix22

• Rational DOORS Next Generation 5.0.2 iFix22

• Rational Software Architect Design Manager:_ _Upgrade to version 5.0.2 and install server from CLM 5.0.2 iFix22

• Rational Rhapsody Design Manager:_ _Upgrade to version 5.0.2 and install server from CLM 5.0.2 iFix22

• Rational Engineering Lifecycle Manager:_ _Upgrade to version 5.0.2 and install server from CLM 5.0.2 iFix22
  _
  _For the 4.x releases, upgrade to version 4.0.7 iFix14 or later

• Rational Collaborative Lifecycle Management 4.0.7 iFix14

• Rational Team Concert 4.0.7 iFix14

• Rational Quality Manager 4.0.7 iFix14

• Rational DOORS Next Generation/Requirements Composer 4.0.7 iFix14

• Rational Software Architect Design Manager: _ _Upgrade to version 4.0.7 and install server from CLM 4.0.7 iFix14

• Rational Rhapsody Design Manager: Upgrade to version 4.0.7 and install server from CLM 4.0.7 iFix14

• Rational Engineering Lifecycle Manager: Upgrade to version 4.0.7 and install server from CLM 4.0.7 iFix14

Step 2:
Upgrade your Apache Tomcat to version 7.0.78 or later. Perform How to update the Apache Tomcat server for IBM Rational products based on versions 3.0.1.6, 4.0.7 or later of IBM’s Jazz technology to apply the remediation.

For any prior versions of the products listed above, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

If the iFix is not found in the Fix Portal please contact IBM Support.

Workarounds and Mitigations

None