Security Bulletin: IBM App Connect Enterprise Certified Container Integration Servers may be vulnerable to a symlink attack due to CVE-2021-39135

Summary

IBM App Connect Enterprise Certified Container Integration Server images may be vulnerable to a symlink attack that could alter the files on disk due to vulnerabilities in the Node module npm. The npm module is not used at runtime by IBM App Connect Enterprise itself, but anyone using the certified containers as a base for their images may then have a version of npm that contains CVE-2021-39135

Vulnerability Details

CVEID:CVE-2021-39135
**DESCRIPTION:**Node.js @npmcli/arborist module could allow a local attacker to launch a symlink attack. By replacing the node_modules folder of the root project or any of its dependencies with a symbolic link, an attacker could exploit this vulnerability to write package dependencies to any arbitrary location on the file system.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208464 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N)

Affected Products and Versions

Remediation/Fixes

App Connect Enterprise Certified Container 1.1 LTS

This only affects IntegrationServer components at version ​11.0.0.13-r2-eus. Upgrade to App Connect Enterprise Certified Container Operator version 1.1.4 EUS (available in CASE 1.1.4) or higher, and ensure that all IntegrationServers are at 11.0.0.13-r3-eus or higher.

Workarounds and Mitigations

None