Security Bulletin: IBM API Connect is affected by a denial of service vulnerability via large JSON payloads (CVE-2018-1779)

Summary

API Connect has addressed the following vulnerability.

The management microservice in API Connect version 2018.1 through 2018.3.7 is vulnerable to denial of service attacks via large JSON payloads. An attacker can flood the management service with unauthenticated api requests with large JSON payloads. This could result in the server allocating disproportionate computing resources to process the malicious requests causing the server to crash.

Vulnerability Details

CVEID:CVE-2018-1779
**DESCRIPTION:*IBM API Connect could allow an unauthenticated attacker to cause a denial of service due to not setting limits on JSON payload size.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/148802&gt; for the current score
CVSS Environmental Score: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

Addressed in IBM API Connect V2018.4.1

Management Server is impacted.

Follow this link and find the appropriate Management Server package:

http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm%7EWebSphere&product=ibm/WebSphere/IBM+API+Connect&release=2018.3.7&platform=All&function=all&source=fc