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Security Bulletin: IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise Edition is affected by ASoC vulnerability (CVE-2019-4396)

Security Bulletin


IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise has addressed the ASoC vulnerability.

Vulnerability Details

CVEID: CVE-2019-4396
DESCRIPTION: IBM Cloud Orchestrator is vulnerable to HTTP response splitting attacks, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability to inject arbitrary HTTP headers and cause the server to return a split response, once the URL is clicked. This would allow the attacker to perform further attacks, such as Web cache poisoning or cross-site scripting, and possibly obtain sensitive information.
CVSS Base Score: 5.4
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)

Affected Products and Versions

IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise 2.5,,,,,,,,,, 2.4,,,,,


The recommended solution is to apply the fixes as soon as practical.  

Principal Product and Version(s) VRMF Remediation/First Fix
IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise 2.5,,,,,,,,,

For 2.5 versions, IBM recommends upgrading to Fix Pack 10 ( of IBM Cloud Orchestrator:

IBM Cloud Orchestrator and IBM Cloud Orchestrator Enterprise 2.4,,,,,
Contact IBM Cloud Orchestrator support. 


Workarounds and Mitigations


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Change History

23 October 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.


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.

Document Location


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Document Information

Modified date:
23 October 2019