ESB-2019.0755 - [Win][Linux][AIX] Content Navigator: Denial of service - Remote/unauthenticated 2019-03-11

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0755
IBM Security Bulletin: FileNet CMIS (FNCMIS) leveraging Spring Framework is
           vulnerable to a denial of service caused by improper
        handling of range request by the ResourceHttpRequestHandler
                               11 March 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Content Navigator
Publisher:         IBM
Operating System:  AIX
                   Windows
                   Linux variants
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15756  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10872210

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FileNet CMIS (FNCMIS) leveraging Spring Framework is vulnerable to a denial of
service caused by improper handling of range request by the
ResourceHttpRequestHandler

Product:             Content Navigator

Component:           CMIS for FileNet Content Manager

Software version:    3.0.4

Operating system(s): AIX, Linux, Windows

Reference #:         0872210

Security Bulletin

Summary

FileNet Content Management Interoperability Services (CMIS), which ships with
IBM Content Navigator, is affected by the following vulnerability:

Spring Framework's improper handling of ResourceHttpRequestHandler could result
in denial of service condition.

Vulnerability Details

CVE-ID: CVE-2018-15756
DESCRIPTION: Pivotal Spring Framework is vulnerable to a denial of service,
caused by improper handling of range request by the ResourceHttpRequestHandler.
By adding a range header with a high number of ranges, a remote attacker could
exploit this vulnerability to cause a denial of service condition.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
151641 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)

Affected Products and Versions

IBM ECM CMIS and FileNet Collaboration Services 3.0.4

Remediation/Fixes

+------------------------+----------+------------------------------------------------+
|Product                 |VRMF      |Remediation/First Fix                           |
+------------------------+----------+------------------------------------------------+
|IBM ECM CMIS and FileNet|3.0.4     |Download the fix IBM ECM CMIS and CS            |
|Collaboration Services  |          |3.0.4-iFix005 from IBM Fix central ( https://   |
|                        |          |www.ibm.com/support/fixcentral/ )               |
+------------------------+----------+------------------------------------------------+

Workarounds and Mitigations

FileNet Content Management Interoperability Services (CMIS), shipped with IBM
Content Navigator, is vulnerable to Denial of Service (DoS) due to improper
handling of range request by the ResourceHttpRequestHandler in the Spring
Framework. When an attacker adds a range of headers, with a high number of
range values to the request object, the framework results in DoS.
Fixed the FileNet Content Management Interoperability Services (CMIS) by
upgrading the Spring Framework to version 4.3.22


Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

28th Feb 2019 Original Version Published

*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.

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