Security Bulletin: Open Source Sprockets Sprockets Vulnerability (CVE-2014-7819)

Abstract:  Multiple directory traversal vulnerabilities in server.rb in Sprockets before 2.0.5, 2.1.x before 2.1.4, 2.2.x before 2.2.3, 2.3.x before 2.3.3, 2.4.x before 2.4.6, 2.5.x before 2.5.1, 2.6.x and 2.7.x before 2.7.1, 2.8.x before 2.8.3, 2.9.x before 2.9.4, 2.10.x before 2.10.2, 2.11.x before 2.11.3, 2.12.x before 2.12.3, and 3.x before 3.0.0.beta.3, as distributed with Ruby on Rails 3.x and 4.x, allow remote attackers to determine the existence of files outside the application root via a ../ (dot dot slash) sequence with (1) double slashes or (2) URL encoding.

Content:

VULNERABILITY DETAILS:

CVEID: CVE-2014-7819

DESCRIPTION:

Sprockets could allow a remote attacker to obtain sensitive information.  By sending a specially-crafted request, a remote attacker could exploit this vulnerability to obtain file existence information.

CVSS Base Score: 5.0

CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

 

AFFECTED PRODUCTS AND VERSIONS:

IBM Aspera Shares 1.8.1 and earlier




REMEDIATION:  

Upgrade the affected product to IBM Aspera Shares 1.9.1 which was released on February 24, 2015.  This application has been released with Sprockets 2.2.3.

Workaround(s) & Mitigation(s):

REFERENCES:

RELATED INFORMATION:

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

CHANGE HISTORY

19 March 2015:  Original Copy Published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Flash.

Note: According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an 'industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response.' IBM PROVIDES THE CVSS SCORES 'AS IS' WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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