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CVE-2020-4821 Details

Description

IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for z/OS 10.2.1, under certain configurations, could allow a user to bypass authentication mechanisms using an empty password string. IBM X-Force ID: 189834

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://exchange.xforce.ibmcloud.com/vulnerabilities/189834	CVE	VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/6472909	CVE	PatchVendor Advisory
https://www.ibm.com/support/pages/node/6472911	CVE	PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/189834	[email protected]	VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/6472909	[email protected]	PatchVendor Advisory
https://www.ibm.com/support/pages/node/6472911	[email protected]	PatchVendor Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	[email protected]

Affected Products

Product	Versions
ibm infosphere data replication	11.4 11.4.0
CPE cpe:2.3:a:ibm:infosphere_data_replication:11.4:::::::* cpe:2.3:a:ibm:infosphere_data_replication:11.4.0:::::::* Remediation No remediation found in references.
ibm infosphere change data capture	10.2.1 11.3.3 11.4
CPE cpe:2.3:a:ibm:infosphere_change_data_capture:10.2.1:::::z/os:: cpe:2.3:a:ibm:infosphere_change_data_capture:11.3.3:::::z/os:: cpe:2.3:a:ibm:infosphere_change_data_capture:11.4:::::z/os:: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 29, 2021	Initial Analysis	[email protected]