IBM WebSphere Application Server Liberty for IBM i is vulnerable to identity spoofing by an authenticated user (CVE-2022-22476) and the ability to bypass security restrictions due to Eclipse Paho Java client (CVE-2019-11777) as described in the vulnerability details section. IBM i has addressed the CVEs by providing fixes to IBM WebSphere Application Server Liberty for IBM i as described in the remediation/fixes section.
DESCRIPTION: IBM WebSphere Application Server Liberty 188.8.131.52 through 184.108.40.206 and Open Liberty are vulnerable to identity spoofing by an authenticated user using a specially crafted request. IBM X-Force ID: 225604.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/225604 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)
DESCRIPTION: Eclipse Paho Java client could allow a remote attacker to bypass security restrictions, caused by the failure to check the result when connecting to an MQTT server using TLS and setting a host name verifier. By sending a specially-crafted request, an attacker could exploit this vulnerability to allow one MQTT server to impersonate another and provide the client library with incorrect information.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/167068 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
Affected Products and Versions
|IBM i Release||5770-SS1|
|PTF Download Link|
Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
12 Sep 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.
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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12 September 2022