Security Bulletin: IBM MQ is vulnerable to issues in Eclipse (CVE-2023-4218, CVE-2023-44487)

Summary

IBM MQ has addressed vulnerabilities in Eclipse, which is used in IBM MQ Explorer.

Vulnerability Details

CVEID:CVE-2023-4218
**DESCRIPTION:**Eclipse IDE could allow a local authenticated attacker to obtain sensitive information, caused by improper handling of XML external entity (XXE) declarations. By persuading a victim to open specially crafted XML content, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/271083 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N)

CVEID:CVE-2023-44487
**DESCRIPTION:**Multiple vendors are vulnerable to a denial of service, caused by a flaw in handling multiplexed streams in the HTTP/2 protocol. By sending numerous HTTP/2 requests and RST_STREAM frames over multiple streams, a remote attacker could exploit this vulnerability to cause a denial of service due to server resource consumption.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268044 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

The following installable MQ components are affected by the vulnerability:

- IBM MQ Explorer

If you are running any of these listed components, please apply the remediation/fixes as described below. For more information on the definitions of components used in this list see <https://www.ibm.com/support/pages/installable-component-names-used-ibm-mq-security-bulletins&gt;

Remediation/Fixes

These issues were addressed under APARs IT45240 and IT45350

IBM MQ version 9.0 LTS

Apply Cumulative Security Update 9.0.0.23

IBM MQ version 9.1 LTS

Apply Fix Pack 9.1.0.20

IBM MQ version 9.2 LTS

Apply Cumulative Security Update 9.2.0.22

IBM MQ version 9.3 CD

Upgrade to IBM MQ version 9.3.5 CD

Workarounds and Mitigations

None