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.
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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 |
Affected Products & 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 & Mitigations
None.
Revision History
| Revision | Date | Description |
| 1.0 | 2021-05-13 | Initial Release |
| 1.1 | 2021-08-06 | Addition to Updated Version(s) |
| 1.2 | 2021-09-22 | Added language to clearly state Network Management Console impacted |
Acknowledgements
Dell would like to thank Piotr Madej and Lukasz Mikula of AFINE for reporting this issue (CVE-2021-21559).
Related Information
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Affected Products
NetWorker, NetWorker Management Console, Product Security InformationArticle Properties
Article Number: 000186638
Article Type: Dell Security Advisory
Last Modified: 17 Nov 2021
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