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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2373
 Cisco Digital Network Architecture Center Command Injection Vulnerability
                              16 August 2018

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

Product:           Cisco Digital Network Architecture (DNA)
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0427  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-dna-injection

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Cisco Digital Network Architecture Center Command Injection Vulnerability

Medium

Advisory ID:     cisco-sa-20180815-dna-injection

First Published: 2018 August 15 16:00 GMT

Version 1.0:     Final

Workarounds:     No workarounds available

Cisco Bug IDs:

CVE-2018-0427

CWE-77

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

Summary

  o A vulnerability in the CronJob scheduler API of Cisco Digital Network
    Architecture (DNA) Center could allow an authenticated, remote attacker to
    perform a command injection attack.

    The vulnerability is due to incorrect input validation of user-supplied
    data. An attacker could exploit this vulnerability by sending a malicious
    packet. A successful exploit could allow the attacker to execute arbitrary
    commands with root privileges.

    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-20180815-dna-injection

Affected Products

  o Vulnerable Products

    This vulnerability affects Cisco DNA Center. 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 this vulnerability.

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 found during internal security testing.

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.

Subscribe to Cisco Security Notifications

  o Subscribe

URL

  o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-dna-injection

Revision History

  o +----------+---------------------------+----------+--------+-----------------+
    | Version  |        Description        | Section  | Status |      Date       |
    +----------+---------------------------+----------+--------+-----------------+
    | 1.0      | Initial public release.   | -        | Final  | 2018-August-15  |
    +----------+---------------------------+----------+--------+-----------------+

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