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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4184
         Cisco Small Business SPA500 Series IP Phones Local Script
                          Execution Vulnerability
                              7 November 2019

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

Product:           Cisco Small Business SPA500 Series IP Phones
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Execute Arbitrary Code/Commands -- Console/Physical
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-15959  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-spa500-script

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

Cisco Small Business SPA500 Series IP Phones Local Script Execution
Vulnerability

Priority:        Medium

Advisory ID:     cisco-sa-20191106-spa500-script

First Published: 2019 November 6 16:00 GMT

Version 1.0:     Final

Workarounds:     No workarounds availableCisco Bug IDs:   CSCvp40755

CVE-2019-15959   

CWE-20

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

Summary

  o A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow
    a physically proximate attacker to execute arbitrary commands on the
    device.

    The vulnerability is due to the presence of development testing and
    verification scripts that remained on the device. An attacker could exploit
    this vulnerability by accessing the physical interface of a device and
    inserting a USB storage device. A successful exploit could allow the
    attacker to execute scripts on the device in an elevated security context.

    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-20191106-spa500-script

Affected Products

  o Vulnerable Products

    At the time of publication, this vulnerability affected Cisco Small
    Business SPA500 Series IP Phones firmware releases 7.6.2SR5 and earlier.

    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 There are no workarounds that address this vulnerability.

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 Cisco
    Technical Assistance Center (TAC) or their contracted maintenance
    providers.

    Fixed Releases

    For information about fixed software releases, consult the Cisco bug ID(s)
    at the top of this advisory.

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 Dustin Cobb of Aon's Cyber Labs 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-20191106-spa500-script

Revision History

  o +---------+-------------------------+---------+--------+------------------+
    | Version |       Description       | Section | Status |       Date       |
    +---------+-------------------------+---------+--------+------------------+
    | 1.0     | Initial public release. | -       | Final  | 2019-November-06 |
    +---------+-------------------------+---------+--------+------------------+

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