Summary

• Multiple vulnerabilities in certain REST API endpoints of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to execute arbitrary SQL commands on an affected device.

  For more information about these vulnerabilities, see the Details section of this advisory.

  Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

  This advisory is available at the following link:
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-sql-inj-OAQOObP

Affected Products

• Vulnerable Products

  These vulnerabilities affect Cisco DCNM releases earlier than Release 11.5(1).

  Products Confirmed Not Vulnerable

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities.

Details

• The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit the other vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerability.

  Details about the vulnerabilities are as follows.

  CVE-2021-1247: Cisco DCNM SQL Injection Vulnerability

  A vulnerability in a REST API endpoint of Cisco DCNM could allow an authenticated, remote attacker with lower-level privileges to execute arbitrary SQL commands on an affected device.

  This vulnerability is due to insufficient validation of user-supplied input to the API. An attacker with lower-level privileges, such as network-operator, could exploit this vulnerability by sending a crafted request to the API. A successful exploit could allow the attacker to view information that they are not authorized to view, make changes to the system that they are not authorized to make, or execute commands within the underlying operating system that may affect the availability of the device.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  Bug ID(s): CSCvv82432
  CVE ID: CVE-2021-1247
  Security Impact Rating (SIR): High
  CVSS Base Score: 8.8
  CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  CVE-2021-1248: Cisco DCNM SQL Injection Vulnerability

  A vulnerability in a REST API endpoint of Cisco DCNM could allow an authenticated, remote attacker with administrative privileges to execute arbitrary SQL commands on an affected device.

  This vulnerability is due to insufficient validation of user-supplied input to the API. An attacker with administrative privileges could exploit this vulnerability by sending a crafted request to the API. A successful exploit could allow the attacker to view information that they are not authorized to view, make changes to the system that they are not authorized to make, or execute commands within the underlying operating system that may affect the availability of the device.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  Bug ID(s): CSCvv82433
  CVE ID: CVE-2021-1248
  Security Impact Rating (SIR): High
  CVSS Base Score: 7.2
  CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Workarounds

• There are no workarounds that address these vulnerabilities.

Fixed Software

• Cisco has released free software updates that address the vulnerabilities described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
  https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

  Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.

  When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.

  In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

  Customers Without Service Contracts

  Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

  Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.

  Fixed Releases

  Cisco fixed these vulnerabilities in Cisco DCNM releases 11.5(1) and later.

Exploitation and Public Announcements

• The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

Source

• These vulnerabilities were found during internal security testing.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-sql-inj-OAQOObP

Revision History

• Version	Description	Section	Status	Date
  1.0	Initial public release.	—	Final	2021-JAN-20

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