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AUSCERT External Security Bulletin Redistribution
ESB-2019.0713.2
Cisco Application Policy Infrastructure Controller IPv6
Link-Local Address Vulnerability
13 March 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Application Policy Infrastructure Controller (APIC)
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-1690
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-apic-ipv6
Revision History: March 13 2019: Corrected external researcher name
March 7 2019: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Application Policy Infrastructure Controller IPv6 Link-Local Address
Vulnerability
Priority: Medium
Advisory ID: cisco-sa-20190306-apic-ipv6
First Published: 2019 March 6 16:00 GMT
Last Updated: 2019 March 12 19:05 GMT
Version 1.1: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvn09855
CVE-2019-1690
CWE-284
CVSS Score:
4.3 AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in the management interface of Cisco Application Policy
Infrastructure Controller (APIC) software could allow an unauthenticated,
adjacent attacker to gain unauthorized access on an affected device.
The vulnerability is due to a lack of proper access control mechanisms for
IPv6 link-local connectivity imposed on the management interface of an
affected device. An attacker on the same physical network could exploit
this vulnerability by attempting to connect to the IPv6 link-local address
on the affected device. A successful exploit could allow the attacker to
bypass default access control restrictions on an affected device.
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-20190306-apic-ipv6
Affected Products
o Vulnerable Products
This vulnerability affects Cisco Application Policy Infrastructure
Controller. For information about affected software releases, consult the
Cisco bug ID(s) at the top of this advisory.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Cisco has determined that this vulnerability does not affect the following
Cisco products:
Firepower 2100 Series Firewalls
Firepower 4100 Series Next-Generation Firewalls
Firepower 9300 Security Appliance
MDS 9000 Series Multilayer Director Switches
Nexus 1000V Switch for Microsoft Hyper-V
Nexus 1000V Switch for VMware vSphere
Nexus 2000 Series Fabric Extenders
Nexus 3000 Series Switches
Nexus 3500 Platform Switches
Nexus 3600 Platform Switches
Nexus 5000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Nexus 7000 Series Switches
Nexus 7700 Series Switches
Nexus 9000 Series Switches in standalone NX-OS mode
Nexus 9500 R-Series Line Cards and Fabric Modules
UCS 6200 Series Fabric Interconnects
UCS 6300 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
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 Cisco would like to thank Octav Opaschi with Detack GmbH for reporting this
vulnerability.
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-20190306-apic-ipv6
Revision History
o +---------+----------------------------+---------+--------+---------------+
| Version | Description | Section | Status | Date |
+---------+----------------------------+---------+--------+---------------+
| 1.1 | Corrected external | Source. | Final | 2019-March-12 |
| | researcher name. | | | |
+---------+----------------------------+---------+--------+---------------+
| 1.0 | Initial public release. | - | Final | 2019-March-06 |
+---------+----------------------------+---------+--------+---------------+
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