ESB-2017.2923 - [Cisco] Cisco Email Security Appliance (ESA): Provide misleading information - Remote with user interaction 2017-11-16

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2923
   Cisco Email Security Appliance HTTP Response Splitting Vulnerability
                             16 November 2017

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

Product:           Cisco Email Security Appliance (ESA)
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12309  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-esa

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Cisco Email Security Appliance HTTP Response Splitting Vulnerability

Severity: Medium
Advisory ID: cisco-sa-20171115-esa
First Published: 2017 November 15 16:00  GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvf16705 CVE-2017-12309 CWE-113

CVSS Score:
Base 5.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:X

CVE-2017-12309
CWE-113

Summary

  * A vulnerability in the Cisco Email Security Appliance (ESA) could allow an
    unauthenticated, remote attacker to conduct a HTTP response splitting
    attack.

    The vulnerability is due to the failure of the application or its
    environment to properly sanitize input values. An attacker could exploit
    this vulnerability by injecting malicious HTTP headers, controlling the
    response body, or splitting the response into multiple responses. An
    exploit could allow the attacker to perform cross-site scripting attacks,
    cross-user defacement, web cache poisoning, and similar exploits.

    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-20171115-esa

Affected Products

  * Vulnerable Products

    This vulnerability affects Cisco Email Security Appliance (ESA). For
    information about affected software releases, consult the Cisco bug ID(s)
    at the top of this advisory.

    Products Confirmed Not Vulnerable

    No other Cisco products are currently 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 internally reported to Cisco.

Cisco Security Vulnerability Policy

  * 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

  * https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
    cisco-sa-20171115-esa

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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.

Cisco Security Vulnerability Policy

  * 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.

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