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AUSCERT External Security Bulletin Redistribution
ESB-2018.2645
Cisco Data Center Network Manager Privilege Escalation to
Underlying Operating System Vulnerability
6 September 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Data Center Network Manager
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0440
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cdcnm-escalation
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Cisco Security Advisory
Cisco Data Center Network Manager Privilege Escalation to Underlying Operating
System Vulnerability
High
Advisory ID: cisco-sa-20180905-cdcnm-escalation
First Published: 2018 September 5 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvi47733
CVE-2018-0440
CWE-264
CVSS Score: Base 7.2
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Summary
o A vulnerability in the web interface of Cisco Data Center Network Manager
could allow an authenticated application administrator to execute commands
on the underlying operating system with root-level privileges.
The vulnerability is due to incomplete input validation of user input
within an HTTP request. An attacker could exploit this vulnerability by
authenticating to the application and then sending a crafted HTTP request
to the targeted application. A successful exploit could allow the
authenticated attacker to issue commands on the underlying operating system
as the root user.
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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180905-cdcnm-escalation
Affected Products
o Vulnerable Products
This vulnerability affects all Cisco Data Center Network Manager releases
prior to 11.0(1).
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o 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.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 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.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 this vulnerability in Cisco Data Center Network Manager
Software Releases 11.0(1) and later.
Customers can download the latest firmware release from the Software Center
on Cisco.com by doing the following:
1. Click Browse all
2. Navigate to Cloud and Systems Management > Data Center Infrastructure
Management > Data Center Network Manager
3. Access releases by using the left pane of the Data Center Network
Manager page
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerability that is
described in this advisory.
Source
o This vulnerability was found during internal security testing.
Cisco Security Vulnerability Policy
o 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.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20180905-cdcnm-escalation
Revision History
o
+---------+--------------------------+---------+--------+--------------------+
| Version | Description | Section | Status | Date |
+---------+--------------------------+---------+--------+--------------------+
| 1.0 | Initial public release. | -- | Final | 2018-September-05 |
+---------+--------------------------+---------+--------+--------------------+
Legal Disclaimer
o THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information
or contain factual errors. The information in this document is intended for
end users of Cisco products.
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