ESB-2018.2016 - [Cisco] Cisco FireSIGHT System Software: Unauthorised access - Remote/unauthenticated 2018-07-12

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2016
     Cisco FireSIGHT System Software File Policy Bypass Vulnerability
                               12 July 2018

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

Product:           Cisco FireSIGHT System Software
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0383  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-file-bypass
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-url-bypass

Comment: This bulletin contains two (2) Cisco Systems security advisories.

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Cisco FireSIGHT System Software File Policy Bypass Vulnerability

Severity: Medium
Advisory ID: cisco-sa-20180711-firesight-file-bypass
First Published: 2018 July 11 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvh70130
 
CVE-2018-0383
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

Summary

  * A vulnerability in the detection engine of Cisco FireSIGHT System Software
    could allow an unauthenticated, remote attacker to bypass a file policy
    that is configured to block the transfer of files to an affected system via
    FTP.

    The vulnerability exists because the affected software incorrectly handles
    FTP control connections. An attacker could exploit this vulnerability by
    sending a maliciously crafted FTP connection to transfer a file to an
    affected device. A successful exploit could allow the attacker to bypass a
    file policy that is configured to apply the Block upload with reset action
    to FTP 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-20180711-firesight-file-bypass

Affected Products

  * Vulnerable Products

    This vulnerability affects Cisco FireSIGHT System Software. 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-20180711-firesight-file-bypass

Revision History

  * 
    +-----------------------------------------------------------------------------+
    | Version  |        Description         | Section  | Status  |      Date      |
    |----------+----------------------------+----------+---------+----------------|
    | 1.0      | Initial public release.    | ?        | Final   | 2018-July-11   |
    +-----------------------------------------------------------------------------+

- --------------------------------------------------------------------------------

Cisco FireSIGHT System Software URL-Based Access Control Policy Bypass
Vulnerability

Severity: Medium
Advisory ID: cisco-sa-20180711-firesight-url-bypass
First Published: 2018 July 11 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvh84511

CVE-2018-0384
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

Summary

  * 
    A vulnerability in the detection engine of Cisco FireSIGHT System Software
    could allow an unauthenticated, remote attacker to bypass a URL-based
    access control policy that is configured to block traffic for an affected
    system.

    The vulnerability exists because the affected software incorrectly handles
    TCP packets that are received out of order when a TCP SYN retransmission is
    issued. An attacker could exploit this vulnerability by sending a
    maliciously crafted connection through an affected device. A successful
    exploit could allow the attacker to bypass a URL-based access control
    policy that is configured to block traffic for the affected system.

    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-20180711-firesight-url-bypass

Affected Products

  * Vulnerable Products

    This vulnerability affects Cisco FireSIGHT System Software. 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-20180711-firesight-url-bypass

Revision History

  * 
    +-----------------------------------------------------------------------------+
    | Version  |        Description         | Section  | Status  |      Date      |
    |----------+----------------------------+----------+---------+----------------|
    | 1.0      | Initial public release.    | ?        | Final   | 2018-July-11   |
    +-----------------------------------------------------------------------------+

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