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Security Bulletin: IBM Resilient OnPrem could allow an attacker on a restricted internal network to provide the server with a spoofed source IP address. (CVE-2020-4864)

Security Bulletin


The X-Forwarded-For Header in a request can inadvertently log an incorrect IP address when connecting to specific internal networks. The affects only on-premises customers within a restricted network.

Vulnerability Details

CVEID:   CVE-2020-4864
DESCRIPTION:   IBM Resilient OnPrem could allow an attacker on the internal net work to provide the server with a spoofed source IP address.
CVSS Base score: 4.3
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
Resilient OnPremIBM Security SOAR


Users must apply the latest patch for their IBM Resilient platform (v37.2 or newer) from IBM FixCentral in order to obtain a fix for this vulnerability.

For example, you can upgrade the platform to v38 by following the instructions in the "Upgrade Procedure" section in the IBM Knowledge Center. 

Workarounds and Mitigations


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Change History

27 Oct 2020: Initial Publication

*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


[{"Business Unit":{"code":"BU008","label":"Security"},"Product":{"code":"SSDVCX","label":"IBM Resilient"},"Component":"","Platform":[{"code":"PF043","label":"Red Hat"}],"Version":"IBM Resilient SOAR V38.0","Edition":""}]

Document Information

Modified date:
28 October 2020