There is a potential for IBM Event Streams API calls involving a paginated response to be redirected to an external site after the first page has been retrieved when subsequent pages are requested.
DESCRIPTION: IBM Event Streams could allow a remote attacker to submit an API request with a fake Host request header. An attacker, who has already gained authorised access via the CLI, could exploit this vulnerability to spoof the request header.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/150507 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM Event Streams:
Upgrade to IBM Event Streams 2018.3.1 which is available from Passport Advantage.
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17 December 2018: original document 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.
17 December 2018