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Rewterz Threat Advisory – Multiple IBM MQ Appliance, AIX, and Spectrum Scale Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2020-4925

A security vulnerability in the Spectrum Scale 5.0 and 5.1 allows a non-root user to overflow the mmfsd daemon with requests and preventing the daemon to service other requests.

CVE-2021-38955

IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a local user with elevated privileges to cause a denial of service due to a file creation vulnerability in the audit commands

CVE-2021-38986

IBM MQ Appliance 9.2 CD and 9.2 LTS does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system.

CVE-2022-22321

IBM MQ Appliance 9.2 CD and 9.2 LTS local messaging users stored with a password hash that provides insufficient protection.

Impact

  • Denial of Service
  • Information Disclosure
  • Unauthorized Access

Indicators of Compromise

CVE

  • CVE-2020-4925
  • CVE-2021-38955
  • CVE-2021-38986
  • CVE-2022-22321

Affected Vendors

IBM

Affected Products

  • IBM Spectrum Scale 5.0
  • IBM Spectrum Scale 5.1
  • IBM AIX 7.1
  • IBM AIX 7.2
  • IBM VIOS 3.1
  • IBM AIX 7.3
  • IBM MQ Appliance 9.2 LTS
  • IBM MQ Appliance 9.2 CD

Remediation

Refer to IBM Security Bulletin for patch, upgrade, or suggested workaround information. 

CVE-2020-4925

https://www.ibm.com/support/pages/node/6560094

CVE-2021-38955

https://www.ibm.com/support/pages/node/6560236

CVE-2021-38986

https://www.ibm.com/support/pages/node/6560032

CVE-2022-22321

https://www.ibm.com/support/pages/node/6560042