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AUSCERT External Security Bulletin Redistribution
ESB-2018.1224
Cisco DNA Center Cross Origin Resource Sharing Vulnerability
19 April 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco DNA Center
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0269
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-dna1
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Cisco DNA Center Cross Origin Resource Sharing Vulnerability
Medium
Advisory ID: cisco-sa-20180418-dna1
First Published: 2018 April 18 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvh99208
CVE-2018-0269
CWE-200
CVSS Score: 5.4
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in the web framework of the Cisco Digital Network
Architecture Center (DNA Center) could allow an unauthenticated, remote
attacker to communicate with the Kong API server without restriction.
The vulnerability is due to an overly permissive Cross Origin Resource
Sharing (CORS) policy. An attacker could exploit this vulnerability by
convincing a user to follow a malicious link. An exploit could allow the
attacker to communicate with the API and exfiltrate sensitive information.
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-20180418-dna1
Affected Products
o Vulnerable Products
This vulnerability affects Cisco DNA Center. For information about affected
software releases, consult the Cisco bug ID(s) at the top of this advisory.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
vulnerability.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o For information about fixed software releases, consult the Cisco bug ID(s)
at the top of this advisory.
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.
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-20180418-dna1
Revision History
o
+----------+----------------------------+----------+---------+----------------+
| Version | Description | Section | Status | Date |
+----------+----------------------------+----------+---------+----------------+
| 1.0 | Initial public release. | -- | Final | 2018-April-18 |
+----------+----------------------------+----------+---------+----------------+
- -------------------------------------------------------------------------------
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.
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.
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