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AUSCERT External Security Bulletin Redistribution
ESB-2019.0537
Cisco Prime Infrastructure Certificate Validation Vulnerability
21 February 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Prime Infrastructure
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-1659
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-prime-validation
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Prime Infrastructure Certificate Validation Vulnerability
Priority: High
Advisory ID: cisco-sa-20190220-prime-validation
First Published: 2019 February 20 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvj87015
CVE-2019-1659
CWE-295
CVSSÂ Score:
7.4 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in the Identity Services Engine (ISE) integration feature
of Cisco Prime Infrastructure (PI) could allow an unauthenticated, remote
attacker to perform a man-in-the-middle attack against the Secure Sockets
Layer (SSL) tunnel established between ISE and PI.
The vulnerability is due to improper validation of the server SSL
certificate when establishing the SSL tunnel with ISE. An attacker could
exploit this vulnerability by using a crafted SSL certificate and could
then intercept communications between the ISE and PI. A successful exploit
could allow the attacker to view and alter potentially sensitive
information that the ISE maintains about clients that are connected to the
network.
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-20190220-prime-validation
Affected Products
o Vulnerable Products
This vulnerability affects Cisco Prime Infrastructure Software Releases
2.2 through 3.4.0 when the PI server is integrated with ISE, which is
disabled by default. The administrator can determine whether ISE
integration is configured by choosing Administration > Servers > ISE
Servers and confirming whether any ISE servers are listed.
Determining the PI Software Release
1. The administrator can issue the show version command from the console
CLI. The following output is from an affected application that is
running PI Software Release 3.3.0:
piconsole# show version
Cisco Application Deployment Engine OS Release: 3.1
ADE-OS Build Version: 3.1.0.001
ADE-OS System Architecture: x86_64
Copyright (c) 2009-2017 by Cisco Systems, Inc.
All rights reserved.
Hostname: XXXXXXXXX
Version information of installed applications
---------------------------------------------
Cisco Prime Infrastructure
********************************************************
Version : 3.3.0
Build : 3.3.0.0.342
2. The administrator can view the PI release and maintenance release
updates by connecting to the web interface using the http(s)://
<system-ip> access URL. The PI software release is displayed on the
welcome screen. The following is an example of text that is displayed
in the pop-up window for PI Software Release 3.3:
Cisco Prime Infrastructure
Version 3.3
View Installed Update
3. The administrator can also view the PI release and maintenance
releases by logging in to the web interface using the http(s)://
<system-ip> access URL and choosing Gear > About Prime Infrastructure.
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 confirmed that Cisco Evolved Programmable Network Manager (EPNM)
is not 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 Prime Infrastructure Software
Release 3.5.
Customers can download the Cisco Prime Infrastructure Software from the
Software Center on Cisco.com by doing the following:
Click Browse all.
Navigate to Cloud and Systems Management > Routing and Switching
Management > Network Management Solutions > Prime Infrastructure.
More information about upgrading Cisco Prime Infrastructure software is in
Readme for Installing Security Fix Software for the Cisco Prime
Infrastructure Appliance.
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.
Subscribe to Cisco Security Notifications
o Subscribe
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20190220-prime-validation
Revision History
o
+----------+--------------------------+----------+--------+-------------------+
| Version | Description | Section | Status | Date |
+----------+--------------------------+----------+--------+-------------------+
| 1.0 | Initial public release. | -- | Final | 2019-February-20 |
+----------+--------------------------+----------+--------+-------------------+
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