Security Bulletin: Multiple vulnerabilities in node.js may affect configuration editor used in IBM Business Automation Workflow and IBM Business Process Manager (BPM) - CVE-2020-8201, CVE-2020-8252, CVE-2020-8251

Summary

Security vulnerabilities have been reported for Node.js. IBM Business Automation Workflow and IBM BPM include a stand-alone tool for editing configuration properties files that is based on IBM SDK for Node.js.

Vulnerability Details

CVEID:CVE-2020-8201
**DESCRIPTION:**Node.js is vulnerable to HTTP request smuggling, caused by CR-to-Hyphen conversion. By sending specially crafted HTTP request headers, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188591 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2020-8252
**DESCRIPTION:**Node.js is vulnerable to a buffer overflow, caused by improper bounds checking by the libuv’s fs.realpath.native. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188593 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2020-8251
**DESCRIPTION:**Node.js is vulnerable to a denial of service, caused by delayed unfinished HTTP/1.1 requests submission. An attacker could exploit this vulnerability to make the server unable to accept new connections and exhaust all available resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188592 for the current score.
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

For earlier and unsupported versions of the products, IBM recommends upgrading to a fixed, supported version of the product.

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR JR62874 as soon as practical:

• IBM Business Automation Workflow (including fix for IBM Business Process Manager V8.6.0.0 2018.03)
• IBM Business Process Manager Advanced
• IBM Business Process Manager Standard
• IBM Business Process Manager Express

For IBM Business Automation Workflow V18.0, V19.0, and V20.0
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR62874
--OR–
· Apply cumulative fix Business Automation Workflow V20.0.0.2 or later

For IBM Business Process Manager V8.6
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR62874
--OR–
· Upgrade to Business Automation Workflow V20.0.0.2 or later

For IBM BPM V8.5
· Upgrade to IBM BPM V8.5.7, apply Cumulative Fix 2017.06 and then apply iFix JR62874
--OR–
· Upgrade to Business Automation Workflow V20.0.0.2 or later

Workarounds and Mitigations

IBM BPM Configuration Editor is a stand-alone tool for editing properties file. Use a standard text file editor instead.