Operating System:

[Cisco]

Published:

04 October 2019

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3726
         Cisco Security Manager Java Deserialization Vulnerability
                              4 October 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Security Manager
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-12630  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-sm-java-deserial

- --------------------------BEGIN INCLUDED TEXT--------------------

Cisco Security Manager Java Deserialization Vulnerability

Priority:        Medium

Advisory ID:     cisco-sa-20191002-sm-java-deserial

First Published: 2019 October 2 16:00 GMT

Version 1.0:     Final

Workarounds:     No workarounds availableCisco Bug IDs:   CSCvj29055

CVE-2019-12630   

CWE-20

CVSS Score:
6.5  AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X

Summary

  o A vulnerability in the Java deserialization function used by Cisco Security
    Manager could allow an unauthenticated, remote attacker to execute
    arbitrary commands on an affected device.

    The vulnerability is due to insecure deserialization of user-supplied
    content by the affected software. An attacker could exploit this
    vulnerability by sending a malicious serialized Java object to a specific
    listener on an affected system. A successful exploit could allow the
    attacker to execute arbitrary commands on the device with the privileges of
    casuser .

    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-20191002-sm-java-deserial

Affected Products

  o Vulnerable Products

    At the time of publication, this vulnerability affected Cisco Security
    Manager releases earlier than Release 4.18.

    See the Details section in the bug ID(s) at the top of this advisory for
    the most complete and current information.

    Products Confirmed Not Vulnerable

    Only products listed in the Vulnerable Products section of this advisory
    are known to be affected by this vulnerability.

Workarounds

  o Java Management Extension Remote Method Invocation (JMX RMI) uses port 1099
    by default. To mitigate this vulnerability, disable the JMX RMI service.
    The preferred method is to upgrade Cisco Security Manager to Release 4.18
    or later. If this cannot be done, contact the Cisco Technical Assistance
    Center (TAC) for a script to edit the registry to disable the JMX RMI port.

Fixed Software

  o 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 TAC
    or their contracted maintenance providers.

    Fixed Releases

    At the time of publication, Cisco Security Manager releases 4.18 and later
    contained the fix for this vulnerability.

    See the Details section in the bug ID(s) at the top of this advisory for
    the most complete and current information.

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 Cisco would like to thank Francisco Ribeiro of Google for reporting this
    vulnerability.

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-20191002-sm-java-deserial

Revision History

  o +---------+--------------------------+---------+--------+-----------------+
    | Version |       Description        | Section | Status |      Date       |
    +---------+--------------------------+---------+--------+-----------------+
    | 1.0     | Initial public release.  | -       | Final  | 2019-October-02 |
    +---------+--------------------------+---------+--------+-----------------+

- --------------------------END INCLUDED TEXT--------------------

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