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Security Bulletin: Vulnerability in Apache Commons affects Rational Software Architect, Rational Software Architect for WebSphere Software and Rational Software Architect RealTime (CVE-2015-7450)

Security Bulletin


Summary

An Apache Commons Collections vulnerability for handling Java object deserialization was addressed by Rational Software Architect, Rational Software Architect for WebSphere Software and Rational Software Architect RealTime.

Vulnerability Details

CVEID: CVE-2015-7450

DESCRIPTION:
Apache Commons Collections could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of data with Java InvokerTransformer class. By sending specially crafted data, an attacker could exploit this vulnerability to execute arbitrary Java code on the system.

CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107918 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Rational Software Architect, Rational Software Architect for WebSphere Software and Rational Software Architect RealTime: Ver 8.5 through 9.5

Remediation/Fixes

    Product
    VRMF
    Remediation/First Fix
Rational Software Architect (RSA) 9.5 Rational-RSA95-CVE-2015-7450-ifix
Rational Software Architect (RSA) 9.1.x Rational-RSA91-CVE-2015-7450-ifix
Rational Software Architect (RSA) 9.0.x Rational-RSA90-CVE-2015-7450-ifix 
Rational Software Architect (RSA) 8.5.x Rational-RSA85-CVE-2015-7450-ifix
Rational Software Architect for WebSphere Software (RSA4WS) 9.5 Rational-RSA4WS95-CVE-2015-7450-ifix 
Rational Software Architect for WebSphere Software (RSA4WS) 9.1.x Rational-RSA4WS91-CVE-2015-7450-ifix 
Rational Software Architect for WebSphere Software (RSA4WS) 9.0.x Rational-RSA4WS90-CVE-2015-7450-ifix 
Rational Software Architect for WebSphere Software (RSA4WS) 8.5.x Rational-RSA4WS85-CVE-2015-7450-ifix 
Rational Software Architect RealTime (RSART) 9.5 Rational-RSART95-CVE-2015-7450-ifix 
Rational Software Architect RealTime (RSART) 9.1.x Rational-RSART91-CVE-2015-7450-ifix 
Rational Software Architect RealTime (RSART) 9.0.x Rational-RSART90-CVE-2015-7450-ifix 
Rational Software Architect RealTime (RSART) 8.5.x Rational-RSART85-CVE-2015-7450-ifix


Installation Instructions
For versions 8.5.x
Instructions to download and install the update from the compressed files
    1. Download the update files from Fix Central by following the link listed in the above table
      2. Extract the compressed files in an appropriate directory. For example, choose to extract to C:\temp\update
      3. Now, follow the mapping instructions in the table below to pick the folder for the version of your installed product
      Product Version Mapping folder
      8.5 8.5
      8.5.1 8.5.1
      8.5.5 8.5.5
      8.5.5.1 to 8.5.5.3 8.5.5.1
      8.5.5.4 8.5.5.2
        4. Copy the contents of the <extraction location>/features/ directory to <product install directory>/features/ for your version of the product
          5. Copy the contents of the <extraction location>/plugins/ directory to <product install directory>/plugins/ for your version of the product
          6. Restart your version of the product
        For versions 9.0.x, 9.1.x, and 9.5.x instructions on installing this update using Installation Manager, review the topic Updating Installed Product Packages in the IBM Knowledge Center.
        Important: By default, you do not need to download the compressed files that contain the update; the update is downloaded and installed by IBM Installation Manager directly from the IBM update repository.

        Instructions to download and install the update from the compressed files

          1. Download the update files from Fix Central by following the link listed in the above table
            2. Extract the compressed files in an appropriate directory. For example, choose to extract to C:\temp\update
              3. Add the update's repository location in IBM Installation Manager:
                  1. Start IBM Installation Manager.
                  2. On the Start page of Installation Manager, click File > Preferences, and then click Repositories. The Repositories page opens.
                  3. On the Repositories page, click Add Repository.
                  4. In the Add repository window, browse to or enter the file path to the repository.config file, which is located in the directory where you extracted the compressed files and then click OK. For example, enter C:\temp\updates\repository.config.
                  5. Click OK to close the Preference page.
                4. Install the update as described in the the topic "Updating Installed Product Packages" in the information center for your product and version

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              References

              Related information

              IBM Secure Engineering Web Portal
              IBM Product Security Incident Response Blog

              *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

              Disclaimer

              According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.


              Cross reference information
              Segment Product Component Platform Version Edition
              Software Development Rational Software Architect Designer 9.5
              Software Development Rational Software Architect Designer for WebSphere Software 9.5
              Software Development Rational Software Architect RealTime Edition Modeling 8.5, 8.5.1, 9.0, 9.0.0.1, 9.1, 9.1.1, 9.1.2, 9.5
              Software Development Rational Software Architect for WebSphere Software Modeling Linux, Windows 8.5, 8.5.1, 8.5.5, 8.5.5.1, 8.5.5.2, 8.5.5.3, 8.5.5.4, 9.0, 9.0.0.1, 9.1, 9.1.1, 9.1.2

              Document information

              More support for: Rational Software Architect
              Modeling

              Software version: 8.5, 8.5.1, 8.5.5, 8.5.5.1, 8.5.5.2, 8.5.5.3, 8.5.5.4, 9.0, 9.0.0.1, 9.1, 9.1.1, 9.1.2

              Operating system(s): Linux, Windows

              Reference #: 1972753

              Modified date: 09 December 2015