Advisory Details

January 3rd, 2020

Cisco Data Center Network Manager reportTemplateUploadPolicy Directory Traversal Remote Code Execution Vulnerability

CVE ID	CVE-2019-15980
CVSS SCORE	8.8, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	Cisco
AFFECTED PRODUCTS	Data Center Network Manager
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco Data Center Network Manager. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the fm/fmrest/report/reporttemplateuploadpolicy path in the service. When parsing the fileName parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of SYSTEM.
ADDITIONAL DETAILS	Cisco has issued an update to correct this vulnerability. More details can be found at: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200102-dcnm-path-trav
DISCLOSURE TIMELINE	2019-08-13 - Vulnerability reported to vendor 2020-01-03 - Coordinated public release of advisory
CREDIT	Steven Seeley (mr_me) of Source Incite

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