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AUSCERT External Security Bulletin Redistribution
ESB-2018.1211
Cisco Identity Services Engine Shell Access Vulnerability
19 April 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Identity Services Engine
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0275
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-ise
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Cisco Identity Services Engine Shell Access Vulnerability
Medium
Advisory ID: cisco-sa-20180418-ise
First Published: 2018 April 18 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvf54409
CVSS Score: Base 6.7
CVSS: 3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
CVE-2018-0275
CWE-16
Summary
o
A vulnerability in the support tunnel feature of Cisco Identity Services
Engine (ISE) could allow an authenticated, local attacker to access the
device's shell.
The vulnerability is due to improper configuration of the support tunnel
feature. An attacker could exploit this vulnerability by tricking the
device into unlocking the support user account and accessing the tunnel
password and device serial number. A successful exploit could allow the
attacker to run any system command with root access.
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-ise
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco Identity
Services Engine (ISE) software versions prior to 2.2.0.470. For the latest
and most detailed information about affected software releases, consult the
Cisco bug ID(s) at the top of this advisory.
To determine which release of the software is currently running on a
device, administrators may use the show version command in the device CLI
or navigate to the top right corner and click Settings (gear icon) > About
Identity Service Engine in the Admin portal. The output of the command in
the CLI is similar to the following example:
ServiceEngine115/admin# show version
Cisco Application Deployment Engine OS Release: 2.3
ADE-OS Build Version: 2.3.0.187
ADE-OS System Architecture: x86_64
Copyright (c) 2005-2014 by Cisco Systems, Inc.
All rights reserved.
Hostname: ServiceEngine115
Version information of installed applications
---------------------------------------------
Cisco Identity Services Engine
---------------------------------------------
Version : 2.0.0.306
Build Date : Thu Oct 8 13:25:23 2015
Install Date : Tue Nov 17 21:02:22 2015
Cisco Identity Services Engine Patch
---------------------------------------------
Version : 5
Install Date : Fri Jul 07 01:57:01 2017
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
vulnerability.
Details
o The Cisco Identity Services Engine (ISE) simplifies the delivery of
consistent, highly secure access control across wired, wireless, and VPN
connections. With far-reaching, intelligent sensor and profiling
capabilities, ISE can reach deep into the network to deliver superior
visibility into who and what are accessing resources. Through the device
profiler feed service, ISE delivers automatic updates of Cisco's validated
device profiles for various IP-enabled devices from multiple vendors, which
simplifies the task of keeping an up-to-date library of the newest IP
enabled devices.
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 reported to Cisco by an anonymous security
researcher.
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-ise
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.
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