Security Bulletin: A vulnerability in strongSwan affects PowerKVM (CVE-2015-8023)

Summary

PowerKVM is affected by a vulnerability in strongSwan. This vulnerability is now fixed.

Vulnerability Details

CVEID: CVE-2015-8023**
DESCRIPTION:** strongSwan could allow a remote attacker to bypass security restrictions, caused by the failure to properly validate local state by the server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin. An attacker could exploit this vulnerability using empty Success message to bypass the authentication process.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108479 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

PowerKVM 2.1

Remediation/Fixes

Customers can update PowerKVM systems by using “yum update”.

Fix images are made available via Fix Central.

For version 2.1, see PowerKVM 2.1.1.3-65.8 Update https://ibm.biz/BdEnT8 and all later 2.1.1 service updates. Customers running v2.1 are, in any case, encouraged to upgrade to v3.1.

For v2.1 systems currently running fix levels of PowerKVM prior to 2.1.1, please see <http://download4.boulder.ibm.com/sar/CMA/OSA/05e4c/0/README&gt; for prerequisite fixes and instructions.

Workarounds and Mitigations

v2.1 customers can work around the problem by upgrading to the fixed release of v3.1