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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== 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 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXIb8o2aOgq3Tt24GAQg0ZhAAm60n2XJrcGtGvWSiL/RrkBxfjhrof5uN 1T6QQpckwGHE4dCnpohsnXYHcVSSv8PTLwUp9hXrVbvYIARBuQTRYW3397EwJvlw FGliR0mdLvaM6qDHzoIufT94vKvoKtKMNSRYSbhwM7Gr6pTlINeTJ1vGIR9u5cmY HE/zwG0ExJ+sZuiyAOp4iM8yRLABhFzzoYtjcYkrUbR5+/gzI90OI+4j6HrUMiLl 6TzD2JADT8bZD0StHKY67boEyyJ7pF9gQyYmMtBT/umK7YMsgGEAja9VDODdo/VT JVP4TjoEL/y7r+NsA23i5diUm1IXJllQoEJUBVCTH2DMZ1jRIUkEZomgLRlcePIB bsHMNHsy0eUHhF+9bxeblTQ4h1b4KkTAbM9G+E+sb417/yf/nqtCZV2oFBbjvCtP 5Ln5azJ6B9jJOl3QVh/e45xTB/UGaRfVfLsHGoHS1Oleuwvu1aRH455UoBA+UU3m KyyxeUcVx4rRzS6X2rNjt9xPcV67m/A8jiLCXbkhXd1hCqzsDUeVYjIjc6KfyZwJ 01nlKkx65PqtKKiWj2JmeIDvQENVUbX4vBwOryZKfWoA/ZBaVswMRRQgQ1/AKL4M AO7ndQM6mcEIOYJg5vACVleh6Ja4e4OSB0TJ1yMwkrYk6Jd+ZwDS8CP+j+X1cVkY mv1GusAWRG8= =LzB4 -----END PGP SIGNATURE-----