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

Security Bulletin


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

Affected Product(s)Version(s)
IBM MQ9.1 LTS
IBM MQ9.0 LTS
IBM MQ9.2 CD
IBM MQ9.1 CD
IBM MQ9.2 LTS

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

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

22 August 2022: Initial Publication
25 August 2022: Updated description to clearly indicate IBM MQ's usage of libcurl.

*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

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Document Information

Modified date:
25 August 2022

UID

ibm16614533