ESB-2018.3017 - [Cisco] Cisco Identity Services Engine: Execute arbitrary code/commands - Existing account 2018-10-05

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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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