Security Bulletin: OpenSSH as used by IBM Cloud Pak for Security is vulnerable to privilege escalation (CVE-2021-41617)

Summary

OpenSSH as used by IBM Cloud Pak for Security is vulnerable to privilege escalation . This has been updated in the latest release and the vulnerability have been addressed. Please follow the instructions in the Remediation/Fixes section below to update to the latest version of Cloud Pak for Security (CP4S).

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

Remediation/Fixes

IBM encourages customers to update their systems promptly.

Please upgrade to at least CP4S 1.10.5.0 following these instructions: <https://www.ibm.com/docs/en/cloud-paks/cp-security/1.10?topic=installing-upgrading-cloud-pak-security&gt;

Workarounds and Mitigations

None