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Security Bulletin: Potential redirection to external site when using the the IBM Event Streams API (CVE-2018-1833)

Security Bulletin


Summary

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.

Vulnerability Details

CVEID: CVE-2018-1833
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:

  • 2018.3.0

Remediation/Fixes

Upgrade to IBM Event Streams 2018.3.1 which is available from Passport Advantage.

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Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

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.

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.

Document information

More support for: WebSphere
IBM Event Streams

Software version: 2018.3.0

Operating system(s): Platform Independent

Reference #: 0787535

Modified date: 17 December 2018