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.
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
|Resilient OnPrem||IBM Security SOAR|
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
Get Notified about Future Security Bulletins
IBM X-Force Ethical Hacking Team: Brad Sherrill, Rodney Ryan, John Zuccato, Jonathan Fitz-gerald, Chris Shepherd, Troy Fisher, Vincent Dragnea, Nathan Roane, Elaheh Samani, and Kamil Sarbinowski
23 Aug 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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
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27 August 2020