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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== 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 CVSS 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 | +----------+--------------------------+----------+--------+-------------------+ - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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