Security Bulletin: Multiple vulnerabilities affect IBM Rational® Application Developer for WebSphere® Software - September 2021

Summary

Vulnerabilities detected in Node.js versions before v14.16.2 affects IBM Rational® Application Developer for WebSphere® Software.

Vulnerability Details

CVEID:CVE-2021-23362
**DESCRIPTION:**Node.js hosted-git-info module is vulnerable to a denial of service, caused by a regular expression denial of service (ReDoS) flaw in the fromUrl function in index.js. By sending a specially-crafted regex input, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198792 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)

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-2021-22918
**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-2021-27290
**DESCRIPTION:**Node.js ssri module is vulnerable to a denial of service, caused by a regular expression denial of service (ReDoS) flaw by the SRIs. By sending a specially-crafted regex string, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198144 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

Rational® Application Developer for WebSphere® Software

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9.6

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Rational® Application Developer for WebSphere® Software

|

9.7

Remediation/Fixes

Available at Fix Central

http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FRational%2FIBM+Rational+Application+Developer+for+WebSphere+Software&fixids=Rational-RAD-PH40823Nodejs-ifix&source=SAR

Recommended procedure to install:

1. Download repository file com.ibm.rational.nodejs.ifix.zip
2. Open IBM Installation Manager (IM)
3. Add .zip file to IM repository preferences [*]
4. Continue with an IM update operation to the end.

Workarounds and Mitigations

None