Security Bulletin: IBM Resilient users may experience a denial of service of the SOAR Platform due to a insufficient input validation (CVE-2019-4579)

Summary

IBM Resilient users may experience a denial of service of the SOAR Platform if a form field contains a extremely large data in a POST, PUT, or PATCH http request.

Vulnerability Details

CVEID:CVE-2019-4579
**DESCRIPTION:**IBM Resilient OnPrem uses incomplete blocklisting for input validation which allows attackers to bypass application controls resulting in direct impact to the system and data integrity.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167236 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

Remediation/Fixes

Users must upgrade to v38.0 of IBM Resilient in order to obtain a fix for this vulnerability. A limit of 1GB will be applied to incoming requests by default. This limit can be changed or deleted.

For example, to change the limit to 500MB, use the following command:

sudo resutil configset -key max_request_payload_mb -ivalue 500

Also, to remove this limit, use the following command:

sudo resutil configset -key max_request_payload_mb -delete

You can upgrade the platform by following the instructions in the “Upgrade Procedure” section in the IBM Knowledge Center.

Workarounds and Mitigations

None