ESB-2018.1512 - [Appliance] Cisco Firepower Threat Defense: Unauthorised access - Remote/unauthenticated 2018-05-17

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1512
           Cisco Firepower Threat Defense vulnerability patched
                                17 May 2018

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

Product:           Cisco Firepower Threat Defense
Publisher:         Cisco Systems
Operating System:  Network Appliance
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0297  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-firepwr-pb

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Cisco Firepower Threat Defense Software Policy Bypass Vulnerability

Severity: Medium
Advisory ID: cisco-sa-20180516-firepwr-pb
First Published: 2018 May 16 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvg09316
 
CVSS Score:
Base 5.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:X/RL:X/RC:X
CVE-2018-0297
 
Summary

  * A vulnerability in the detection engine of Cisco Firepower Threat Defense
    software could allow an unauthenticated, remote attacker to bypass a
    configured Secure Sockets Layer (SSL) Access Control (AC) policy to block
    SSL traffic.

    The vulnerability is due to the incorrect handling of TCP SSL packets
    received out of order. An attacker could exploit this vulnerability by
    sending a crafted SSL connection through the affected device. A successful
    exploit could allow the attacker to bypass a configured SSL AC policy to
    block SSL traffic.

    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-20180516-firepwr-pb

Affected Products

  * Vulnerable Products

    This vulnerability affects Cisco Firepower Threat Defense. 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

  * There are no workarounds that address this vulnerability.

Fixed Software

  * 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

  * 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

  * This vulnerability was found during internal security testing.

URL

  * https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-20180516-firepwr-pb

Revision History

  * 
    +-----------------------------------------------------------------------------+
    | Version  |         Description         | Section  | Status  |     Date      |
    |----------+-----------------------------+----------+---------+---------------|
    | 1.0      | Initial public release.     | ?        | Final   | 2018-May-16   |
    +-----------------------------------------------------------------------------+

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Legal Disclaimer

  * THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
    OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
    FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
    OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
    THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

    A standalone copy or paraphrase of the text of this document that omits the
    distribution URL is an uncontrolled copy and may lack important information
    or contain factual errors. The information in this document is intended for
    end users of Cisco products.

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