Multiple Vulnerabilities in Cisco HyperFlex HX Software Could Allow for Arbitrary Code Execution

DESCRIPTION:
Multiple vulnerabilities have been discovered in Cisco HyperFlex HX
software, the most severe of which could allow for arbitrary code
execution. The Cisco HyperFlex HX Series is Cisco’s a converged
infrastructure system that integrates computing, networking and storage
resources to increase efficiency and enable centralized management. This
product contains a web-based interface which allows user can access to
manage the device. Successful exploitation of the most severe of these
vulnerabilities within the web interface could allow an unauthenticated,
remote attacker to execute arbitrary code on the affected systems.

IMPACT:
Multiple vulnerabilities have been discovered in Cisco HyperFlex HX
software, the most severe of which could allow for arbitrary code
execution. Details of these vulnerabilities are as follows:

* A vulnerability in the web-based management interface could allow for
arbitrary code execution on the affected device due to insufficient user
input validation. An attacker could exploit this vulnerability by
sending a crafted request to the web-based management interface. A
successful exploit could allow the attacker to execute arbitrary
commands on an affected device as the root user. (CVE-2021-1497).
* A vulnerability in the web-based management interface could allow for
arbitrary code execution on the affected device due to insufficient user
input validation. An attacker could exploit this vulnerability by
sending a crafted request to the web-based management interface. A
successful exploit could allow the attacker to execute arbitrary
commands on an affected device as the tomcat8 user. (CVE-2021-1498).

Successful exploitation of the most severe of these vulnerabilities
could allow an unauthenticated, remote attacker to execute arbitrary
code on the affected systems.

SYSTEM AFFECTED:
* Cisco HyperFlex HX Release earlier than 4.0, and 4.0 prior to 4.0(2e)
* Cisco HyperFlex HX Release 4.5 prior to 4.5(1b)

RECOMMENDATIONS:
We recommend the following actions be taken:
* Install the update provided by Cisco immediately after appropriate
testing.
* Restrict access to the management web interface from authorized hosts.
* Apply the Principle of Least Privilege to all systems and services.

REFERENCES:
*
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-rce-TjjNrkpR
* https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1497
* https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1498