Security Bulletin: Incorrect file permissions allows authenticated users to recover IPMI user passwords

Summary

A flaw in the file permissions may expose IPMI user passwords. This may lead to privilege escalations.

Vulnerability Details

CVEID:CVE-2020-14156
**DESCRIPTION:**OpenBMC phosphor-host-ipmid could allow a remote authenticated attacker to bypass security restrictions, caused by the failure to ensure that /etc/ipmi-pass has strong file permissions by user_channel/passwd_mgr.cpp. An attacker could exploit this vulnerability to read and decode the credentials and escalate to any IPMI user.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183497 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

Customers with the product below, running OP940.00 or OP940.01 should install OP940.10

1. IBM Power System AC922 (8335-GTG)

Workarounds and Mitigations

None