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Article Number: 000186638


DSA-2021-104: Dell EMC NetWorker Security Update for Multiple Vulnerabilities

Summary: Dell EMC NetWorker remediation is available for multiple security vulnerabilities that may be exploited by malicious users to compromise the affected system.

Article Content


Impact

High

Details

Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2021-21558 Dell EMC NetWorker, 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1, contains an Information Disclosure vulnerability. A local administrator of the NetWorker Management Console system may potentially exploit this vulnerability to read LDAP credentials from local logs and use the stolen credentials to make changes to the network domain. Dell NetWorker Management Console component is affected by this CVE. 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-21559 Dell EMC NetWorker versions 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client (NetWorker Management Console) components which uses SSL encrypted connection in order to communicate with the application server. An unauthenticated attacker in the same network collision domain as the NetWorker Management Console client may potentially exploit this vulnerability to perform man-in-the-middle attacks to intercept and tamper the traffic between the client and the application server. Dell NetWorker Management Console component is affected by this CVE. 7.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Proprietary Code CVEs Description CVSS Base Score CVSS Vector String
CVE-2021-21558 Dell EMC NetWorker, 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1, contains an Information Disclosure vulnerability. A local administrator of the NetWorker Management Console system may potentially exploit this vulnerability to read LDAP credentials from local logs and use the stolen credentials to make changes to the network domain. Dell NetWorker Management Console component is affected by this CVE. 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2021-21559 Dell EMC NetWorker versions 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client (NetWorker Management Console) components which uses SSL encrypted connection in order to communicate with the application server. An unauthenticated attacker in the same network collision domain as the NetWorker Management Console client may potentially exploit this vulnerability to perform man-in-the-middle attacks to intercept and tamper the traffic between the client and the application server. Dell NetWorker Management Console component is affected by this CVE. 7.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.

Affected Products and Remediation

CVEs Addressed  Product Affected Versions Updated Versions Link to Update
CVE-2021-21558

CVE-2021-21559
Dell EMC NetWorker Management Console Dell EMC NetWorker versions 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1. Dell EMC NetWorker 19.3.0.5, 19.4.0.2, and later. https://www.dell.com/support/home/en-in/product-support/product/networker/drivers

Both CVEs do not affect NetWorker Servers, Storage Nodes, or Clients if Dell NetWorker Management Console is not installed.
Dell EMC NetWorker versions 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1.
CVEs Addressed  Product Affected Versions Updated Versions Link to Update
CVE-2021-21558

CVE-2021-21559
Dell EMC NetWorker Management Console Dell EMC NetWorker versions 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1. Dell EMC NetWorker 19.3.0.5, 19.4.0.2, and later. https://www.dell.com/support/home/en-in/product-support/product/networker/drivers

Both CVEs do not affect NetWorker Servers, Storage Nodes, or Clients if Dell NetWorker Management Console is not installed.
Dell EMC NetWorker versions 18.x, 19.1.x, 19.2.x, 19.3.x, 19.4, and 19.4.0.1.

Workarounds and Mitigations

None.

Acknowledgements

Dell would like to thank Piotr Madej and Lukasz Mikula of AFINE for reporting this issue (CVE-2021-21559).

Revision History

RevisionDateDescription
1.02021-05-13Initial Release
1.12021-08-06Addition to Updated Version(s)
1.22021-09-22Added language to clearly state Network Management Console impacted

Related Information

Dell Security Advisories and Notices
Dell Vulnerability Response Policy
CVSS Scoring Guide


The information in this Dell Technologies Security Advisory should be read and used to assist in avoiding situations that may arise from the problems described herein. Dell Technologies distributes Security Advisories to bring important security information to the attention of users of the affected product(s). Dell Technologies assesses the risk based on an average of risks across a diverse set of installed systems and may not represent the actual risk to your local installation and individual environment. It is recommended that all users determine the applicability of this information to their individual environments and take appropriate actions. The information set forth herein is provided "as is" without warranty of any kind. Dell Technologies expressly disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event shall Dell Technologies, its affiliates or suppliers, be liable for any damages whatsoever arising from or related to the information contained herein or actions that you decide to take based thereon, including any direct, indirect, incidental, consequential, loss of business profits or special damages, even if Dell Technologies, its affiliates or suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation shall apply to the extent permissible under law.

Article Properties


Affected Product

NetWorker, NetWorker Management Console, Product Security Information

Last Published Date

17 Nov 2021

Version

4

Article Type

Dell Security Advisory