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AUSCERT External Security Bulletin Redistribution
ESB-2018.3017
Multiple Vulnerabilities in Cisco Identity Services Engine
5 October 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Identity Services Engine
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-15425 CVE-2018-15424
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-ise-mult-vulns
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Cisco Security Advisory
Multiple Vulnerabilities in Cisco Identity Services Engine
Severity: Medium
Advisory ID: cisco-sa-20181003-ise-mult-vulns
First Published: 2018 October 3 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvj62592
CSCvj62614
CVSS Score: Base 4.7
CVSS: 3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:X
CVE-2018-15424
CVE-2018-15425
CWE-20
Summary
o Multiple vulnerabilities in the web-based management interface of
Cisco Identity Services Engine (ISE) could allow an authenticated, remote
attacker to execute arbitrary commands on the underlying operating system
of an affected device with the privileges of the web server.
For more information about these vulnerabilities, see the Details section
of this security advisory.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20181003-ise-mult-vulns
Affected Products
o Vulnerable Products
These vulnerabilities affect Cisco Identity Services Engine (ISE). 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 these vulnerabilities.
Details
o Two vulnerabilities in the web-based management interface of Cisco Identity
Services Engine (ISE), could allow an authenticated, remote attacker to
execute arbitrary commands on the underlying operating system of an
affected device with the privileges of the web server.
The vulnerabilities are not dependent on one another; exploitation of one
of the vulnerabilities is not required to exploit the other. In addition, a
software release that is affected by one of the vulnerabilities may not be
affected by the other.
Details about the vulnerabilities are as follows.
Cisco Identity Services Engine File Upload Code Execution Vulnerability
A vulnerability in the web-based management interface of Cisco Identity
Services Engine (ISE) could allow an authenticated, remote attacker to
upload arbitrary files to a web-accessible folder on an affected system and
perform arbitrary code execution.
The vulnerability is due to insecure restrictions when files are uploaded
to the web-based management interface. An attacker who has valid
administrator credentials on the system could exploit this vulnerability by
uploading code to be executed on the underlying operating system. A
successful exploit could allow the attacker to perform arbitrary code
execution in the context of the web server, which runs
with non-root privileges.
The CVE ID for this vulnerability is: CVE-2018-15424
The Security Impact Rating (SIR) for this vulnerability is: Medium
Cisco Identity Services Engine Java Deserialization Vulnerability
A vulnerability in Java deserialization in the web-based management
interface of Cisco Identity Services Engine (ISE) could allow an
authenticated, remote attacker to execute arbitrary commands on the
underlying operating system of the affected device with the privileges of
the web server.
The vulnerability is due to insecure deserialization of user-supplied
content by the web-based management interface. An attacker who has valid
administrator credentials on the device could exploit this vulnerability by
sending a crafted serialized Java object. A successful exploit could allow
the attacker to execute arbitrary commands on the underlying operating
system with the privileges of the web server, which runs with non-root
privileges.
The CVE ID for this vulnerability is: CVE-2018-15425
The SIR for this vulnerability is: Medium
Workarounds
o There are no workarounds that address these vulnerabilities.
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 vulnerabilities that are
described in this advisory.
Source
o Cisco would like to thank Application Security Consultant Olivier Arteau of
Groupe Technologie Desjardins for reporting these vulnerabilities.
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-20181003-ise-mult-vulns
Revision History
o
+----------+---------------------------+----------+--------+------------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+------------------+
| 1.0 | Initial public release. | -- | Final | 2018-October-03 |
+----------+---------------------------+----------+--------+------------------+
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