Security Bulletin
Summary
WebSphere Application Server Liberty is used by IBM CICS TX Standard to provide a web based administration console. The fix removes the spoofing vulnerability CVE-2019-11777 from Liberty.
Vulnerability Details
CVEID: CVE-2019-11777
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
| Affected Product(s) | Version(s) |
| IBM CICS TX Standard | All |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability by downloading and applying the interim fixes from the table below
| Product | Version | Defect | Remediation / First Fix |
| IBM CICS TX Standard |
11.1
| 127796 | Download fix here |
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
22 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.
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
Was this topic helpful?
Document Information
Modified date:
14 February 2023
Initial Publish date:
22 September 2022
UID
ibm16695821