Security Bulletin
Summary
Security vulnerabilities have been reported for IBM SDK 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-2021-22918
DESCRIPTION: Node.js is vulnerable to a denial of service, caused by an out-of-bounds read in the libuv's uv__idna_toascii() function. By invoking the function using dns module's lookup() function, a remote attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/204784 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
CVEID: CVE-2021-22921
DESCRIPTION: Node.js could allow a local attacker to gain elevated privileges on the system, caused by improper configuration of permissions in the installation directory. Under certain conditions. An attacker could exploit this vulnerability to perform PATH and DLL hijacking attacks.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/204785 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-22939
DESCRIPTION: Node.js could allow a remote attacker to bypass security restrictions. If the https API was used incorrectly and "undefined" was in passed for the "rejectUnauthorized" parameter, an attacker could exploit this vulnerability to connect to servers using an expired certificate.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207233 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
CVEID: CVE-2021-22931
DESCRIPTION: Node.js could provide weaker than expected security, caused by missing input validation on hostnames returned by DNS servers. An attacker could exploit this vulnerability to cause output of wrong hostnames leading to Domain Hijacking and and injection vulnerabilities in applications using the library.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207230 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)
CVEID: CVE-2021-22940
DESCRIPTION: Node.js could allow a remote attacker to bypass security restrictions, caused by an incomplete fix for CVE-2021-22930 related to a use-after-free on close http2 on stream canceling. An attacker could exploit this vulnerability to corrupt memory to change process behavior.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/207520 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVEID: CVE-2021-22930
DESCRIPTION: Node.js could allow a remote attacker to bypass security restrictions, caused by a use-after-free on close http2 on stream canceling. An attacker could exploit this vulnerability to corrupt memory to change process behavior.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/206473 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Business Automation Workflow | V21.0 V20.0 V19.0 V18.0 |
| IBM Business Process Manager | V8.6 V8.5 |
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 JR64015 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, V20.0, V21.0
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR64015
--OR--
· Apply cumulative fix Business Automation Workflow V21.0.3 or later
For IBM Business Process Manager V8.6
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix JR64015
--OR--
· Upgrade to Business Automation Workflow V21.0.3 or later
For IBM BPM V8.5
· Upgrade to IBM BPM V8.5.7, apply Cumulative Fix 2017.06 and then apply iFix JR64015
--OR--
· Upgrade to Business Automation Workflow V21.0.3 or later
Workarounds and Mitigations
Use a text editor to work with the BPM configuration .properties.
Get Notified about Future Security Bulletins
References
Change History
28 Sep 2021: 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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
28 September 2021
Initial Publish date:
28 September 2021
UID
ibm16493269