Cisco Security Advisory
Cisco Data Center Network Manager Path Traversal Vulnerability
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CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:X/RL:X/RC:X
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A vulnerability in Cisco Data Center Network Manager software could allow an authenticated, remote attacker to conduct directory traversal attacks and gain access to sensitive files on the targeted system.
The vulnerability is due to improper validation of user requests within the management interface. An attacker could exploit this vulnerability by sending malicious requests containing directory traversal character sequences within the management interface. An exploit could allow the attacker to view or create arbitrary files on the targeted system.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180828-dcnm-traversal
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Vulnerable Products
The vulnerability affects Cisco Data Center Network Manager (DCNM) software releases 10.4(2) and prior. Software versions prior to 10.0(1) are not affected.Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
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There are no workarounds that address this vulnerability. However, a patch is available to correct the vulnerability.
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Cisco has released free software updates that address the vulnerability 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.htmlAdditionally, 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 and Alerts 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.htmlCustomers 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
This vulnerability was first resolved in Cisco DCNM Software Release 11.0(1).
The software is available for download from the Software Center on Cisco.com by navigating to Products > Cloud and Systems Management > Data Center Infrastructure Management > Cisco Prime Data Center Network Manager or via direct link.
The DCNM Special Release patch for affected versions of Cisco Prime Data Center Network Manager is available to correct this vulnerability.For RHEL (Linux DCNM install), this patch is applicable only if DCNM is installed at the default install location (/usr/local/cisco/dcm).
1. Download and extract the patch file in 10.x DCNM server in any directory.
2. Run the dcnmweb_patch.sh script under the patch directory.
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The Cisco Product Security Incident Response Team (PSIRT) has become aware of a public proof-of-concept exploit but is not aware of any malicious use of the vulnerability that is described in this advisory.
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Cisco would like to thank Tenable, Inc. for reporting this vulnerability.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.1 Updated advisory with patch information and clarified affected versions. Fixed Software. Final 2018-September-14 1.0 Initial public release. - Interim 2018-August-28
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