Home/CVE/IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that
CVE

CVE-2019-4656

IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that

IBM MQ and IBM MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD is vulnerable to a denial of service attack that would allow an authenticated user to crash the queue and require a restart due to an error processing error messages. IBM X-Force ID: 170967.

MEDIUM · CVSS 6.5 EPSS 0.00334
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules7 YARA rules0
▤

Affected Products & Versions

6
ibm mq>= 8.0.0.0 and < 8.0.0.14
ibm mq>= 9.0.0.0 and <= 9.0.0.9
ibm mq>= 9.1.0 and < 9.1.4
ibm mq>= 9.1.0.0 and < 9.1.0.4
ibm mq appliance>= 8.0.0.0 and < 8.0.0.14
ibm websphere mq>= 7.1.0.0 and <= 7.5.0.9
◈

Sigma Hunt Rules

7
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productcriticalHackTool - Windows Credential Editor (WCE) Execution
productcriticalWindows Credential Editor Registry
producthighOpenCanary - MSSQL Login Attempt Via Windows Authentication
producthighWindows LAPS Credential Dump From Entra ID
producthighTamper Windows Defender - PSClassic
producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · psirt@us.ibm.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Mar 2020 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://exchange.xforce.ibmcloud.com/vulnerabilities/170967VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/1135095Vendor Advisory
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