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

Security Bulletin


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

Affected Product(s)Version(s)
App Connect Enterprise Certified Container1.1-eus with Operator

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

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

See https://www.ibm.com/support/pages/node/6239294 for information supported levels of the ACE Certified Container Operator

Change History

06 Oct 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:
07 October 2021

Initial Publish date:
06 October 2021

UID

ibm16497083

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