Splunk Enterprise 6.6.3 and Splunk Light 6.6.3 address multiple vulnerabilities

Table of Contents

Description

Splunk Enterprise 6.6.3 and Splunk Light 6.6.3 address multiple vulnerabilities

At the time of this announcement, Splunk is not aware of any cases where these vulnerabilities have been actively exploited. Previous Product Security Announcements can be found on our Splunk Product Security Portal. Use SPL numbers when referencing issues in communication with Splunk. If there is no Common Vulnerabilities and Exposures (CVE) identifier listed with a vulnerability, it will be added once it is assigned by a CVE Numbering Authority. To standardize the calculation of severity scores for each vulnerability, when appropriate, Splunk uses Common Vulnerability Scoring System version 2 (CVSS v2).

Affected Products and Components

  • Persistent Cross Site Scripting in Splunk Web (SPL-142874)
    • Affected Product Versions: Splunk Enterprise versions 6.6.x earlier than 6.6.3 and Splunk Light versions 6.6.x earlier than 6.6.3.
    • Affected Components: All Splunk Enterprise components running Splunk Web.
  • Reflected Cross Site Scripting in Splunk Web (SPL-142877)
    • Affected Product Versions: Splunk Enterprise versions 6.6.x earlier than 6.6.3 and Splunk Light versions 6.6.x earlier than 6.6.3.
    • Affected Components: All Splunk Enterprise components running Splunk Web.

    Mitigation and Upgrades

    To mitigate these issues, Splunk recommends upgrading to the latest release and applying as many of the Hardening Standards from the Securing Splunk documentation as are relevant to your environment. Splunk Enterprise and Splunk Light releases are cumulative, meaning that future releases will contain fixes to these vulnerabilities, new features and other bug fixes.

    Vulnerability Descriptions and Ratings

    Persistent Cross Site Scripting in Splunk Web (SPL-142874)

    Description: Splunk Enterprise versions 6.6.x earlier than 6.6.3 and Splunk Light versions 6.6.x earlier than 6.6.3 are affected by a vulnerability that allows an authenticated attacker to inject and store arbitrary JavaScript.

    CVSS Severity (version 2.0):

    CVSS Base Score8.2
    CVSS Impact Subscore9.5
    CVSS Exploitability Subscore6.8
    Overall CVSS Score6.8

    Reflected Cross Site Scripting in Splunk Web (SPL-142877)

    Description: Splunk Enterprise versions 6.6.x earlier than 6.6.3 and Splunk Light versions 6.6.x earlier than 6.6.3 are affected by a vulnerability that could permit an unauthenticated attacker to execute JavaScript with the help of social engineering attack.

    CVSS Severity (version 2.0):

    CVSS Base Score8.2
    CVSS Impact Subscore9.5
    CVSS Exploitability Subscore6.8
    Overall CVSS Score6.8