CVE-2020-4821 : IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for

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

Published 2021-07-16 17:15:12

Updated 2021-07-29 18:04:37

Source IBM Corporation

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2020-4821

IBM » Infosphere Data Replication » Version: 11.4
cpe:2.3:a:ibm:infosphere_data_replication:11.4:*:*:*:*:*:*:*
Matching versions
IBM » Infosphere Data Replication » Version: 11.4.0
cpe:2.3:a:ibm:infosphere_data_replication:11.4.0:*:*:*:*:*:*:*
Matching versions
IBM » Infosphere Change Data Capture » Version: 10.2.1 For Z/os
cpe:2.3:a:ibm:infosphere_change_data_capture:10.2.1:*:*:*:*:z\/os:*:*
Matching versions
IBM » Infosphere Change Data Capture » Version: 11.3.3 For Z/os
cpe:2.3:a:ibm:infosphere_change_data_capture:11.3.3:*:*:*:*:z\/os:*:*
Matching versions
IBM » Infosphere Change Data Capture » Version: 11.4 For Z/os
cpe:2.3:a:ibm:infosphere_change_data_capture:11.4:*:*:*:*:z\/os:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-4821

EPSS FAQ

0.25%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 65 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-4821

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
5.9	MEDIUM	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	2.2	3.6	IBM Corporation
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-4821

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-4821

https://exchange.xforce.ibmcloud.com/vulnerabilities/189834

IBM Cognos security bypass CVE-2020-4821 Vulnerability Report
VDB Entry;Vendor Advisory
https://www.ibm.com/support/pages/node/6472909

Security Bulletin: IBM Data Replication Management Console Authentication By-pass against LDAP directories using anonymous binding
Patch;Vendor Advisory
https://www.ibm.com/support/pages/node/6472911

Security Bulletin: IBM Data Replication Management Console Authentication Affected by Annonymous Binding (CVE-2020-4821)
Patch;Vendor Advisory

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Vulnerability Details : CVE-2020-4821

Products affected by CVE-2020-4821

Exploit prediction scoring system (EPSS) score for CVE-2020-4821

CVSS scores for CVE-2020-4821

CWE ids for CVE-2020-4821

References for CVE-2020-4821