CVE-2020-3249: Cisco UCS Director saveWindowsNetworkConfig Directory Traversal Denial-of-Service Vulnerability
Multiple vulnerabilities in the REST API of Cisco UCS Director and Cisco UCS Director Express for Big Data may allow a remote attacker to bypass authentication or conduct directory traversal attacks on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Other sources
This vulnerability allows remote attackers to overwrite arbitrary files on affected installations of Cisco UCS Director. Authentication is not required to exploit this vulnerability. The specific flaw exists within the saveWindowsNetworkConfig method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-3249?
CVE-2020-3249 is a vulnerability in Cisco UCS Director that allows remote attackers to overwrite arbitrary files.
Is authentication required to exploit CVE-2020-3249?
No, authentication is not required to exploit CVE-2020-3249.
How severe is CVE-2020-3249?
CVE-2020-3249 has a severity rating of 8.2 (critical).
How can I fix CVE-2020-3249?
To fix CVE-2020-3249, it is recommended to upgrade to a version of Cisco UCS Director that has addressed the vulnerability.
Where can I find more information about CVE-2020-3249?
You can find more information about CVE-2020-3249 in the Cisco Security Advisory and the Zero Day Initiative advisory.