Security Bulletin: IBM MQ is vulnerable to issues with libcurl (CVE-2022-27780, CVE-2022-30115)

Summary

Multiple issues were identified within the libcurl library that affect IBM MQ. IBM MQ uses libcurl to provide HTTPURL functionality which is only used to download remote CCDT files and is not used to send or receive messages.

Vulnerability Details

CVEID:CVE-2022-27780
**DESCRIPTION:**cURL libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw that wrongly accepts percent-encoded URL separators like ‘/’ by the URL parser. By sending a specially-crafted host name in a URL, an attacker could exploit this vulnerability to bypass filters and checks for URL.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/226250 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)

CVEID:CVE-2022-30115
**DESCRIPTION:**cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a HSTS check bypass flaw. By sending a specially-crafted request using a host name in the an URL with a trailing dot, an attacker could exploit this vulnerability to obtain sensitive information over clear-text HTTP, and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/226253 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

Remediation/Fixes

This issue was resolved under APAR IT40933

IBM MQ Version 9.0

Apply iFix for APAR IT40933

IBM MQ Version 9.1 LTS

Apply iFix for APAR IT40933

IBM MQ Version 9.2 LTS

Apply FixPack 9.2.0.6

IBM MQ Version 9.1 CD and Version 9.2 CD

Upgrade to IBM MQ Version 9.3

Workarounds and Mitigations

None