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Security Bulletin: IBM App Connect Enterprise Certified Container operands may be vulnerable to privilege escalation due to CVE-2021-41617

Security Bulletin


Summary

OpenSSH is part of the base OS modules in all operand images in IBM App Connect Enterprise Certified Container. IBM App Connect Enterprise Certified Container is not directly vulnerable under standard operations, but custom use of the images may be vulnerable to privilege escalation. This bulletin provides patch information to address the reported vulnerability CVE-2021-41617

Vulnerability Details

CVEID:   CVE-2021-41617
DESCRIPTION:   OpenSSH could allow a local attacker to gain elevated privileges on the system, caused by an error in sshd when certain non-default configurations are used. By executing an AuthorizedKeysCommand or AuthorizedPrincipalsCommand, where a AuthorizedKeysCommandUser or AuthorizedPrincipalsCommandUser directive has been set to run the command as a non-root user, an attacker could exploit this vulnerability to gain privileges associated with group memberships of the sshd process.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210062 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)

Affected Products and Versions

Affected Product(s)Version(s)
App Connect Enterprise Certified Container1.1-eus with Operator
App Connect Enterprise Certified Container3.0 with Operator
App Connect Enterprise Certified Container3.1 with Operator
App Connect Enterprise Certified Container4.0 with Operator
App Connect Enterprise Certified Container4.1 with Operator

Remediation/Fixes

App Connect Enterprise Certified Container 3.0, 3.1, 4.0 and 4.1 (Continuous Delivery)

Upgrade to App Connect Enterprise Certified Container Operator version 4.2.0 or higher, and ensure that all components are at 12.0.4.0-r2 or higher.  Documentation on the upgrade process is available at https://www.ibm.com/docs/en/app-connect/containers_cd?topic=releases-upgrading-operator

App Connect Enterprise Certified Container 1.1 EUS (Extended Update Support)

Upgrade to App Connect Enterprise Certified Container Operator version 1.1.10 or higher, and ensure that all DesignerAuthoring and IntegrationServer components are at 11.0.0.18-r1-eus or higher.  Documentation on the upgrade process is available at https://www.ibm.com/docs/en/app-connect/containers_eus?topic=releases-upgrading-operator

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

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

16 Jun 2022: 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:
22 June 2022

UID

ibm16597539

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