2012-07 Security Bulletin: Junos: J-Web vulnerable to Cross Site Scripting (CVE-2014-2712)

Legacy Advisory Id:PSN-2012-07-649

Product Affected:This issue can affect any product or platform running Junos OS

Problem:Updated April 9, 2014: Releases available for Junos 11.4, 12.1, 12.1X44 and 12.1X45 have been revised. See Solution section below.J-Web is vulnerable to a cross-site scripting injection. Parameters passed as arguments to index.php can result in the execution of scripting tags within the user’s browser. Note that this issue has been misidentified as CVE-2004-2604. J-Web does not use PHProxy, which is a requirement for the vulnerability described by CVE-2004-2604. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. No other Juniper Networks products or platforms are affected by this issue.This issue has been assigned CVE-2014-2712.

Solution:Validation has been enhanced to insure that the PHP modules within J-Web no longer execute HTML code passed in as arguments.The following software releases have been updated to resolve this specific issue:All Junos OS software releases built on or after 2014-02-19, orJunos OS 10.0S25, 10.4R10, 11.4R11, 12.1R9, 12.1X44-D30, 12.1X45-D20, 12.1X46-D10, 12.2R1 and all subsequent releases (i.e. all releases built after 12.2R1).This issue is being tracked as PR 738631 and 939456, and are visible on the Customer Support website.KB16765 – “In which releases are vulnerabilities fixed?” describes which release vulnerabilities are fixed as per our End of Engineering and End of Life support policies.

Workaround:Disabling J-Web will completely mitigate this issue.

Implementation:How to obtain fixed software: Security vulnerabilities in Junos are fixed in the next available Maintenance Release of each supported Junos version. In some cases, a Maintenance Release is not planned to be available in an appropriate time-frame. For these cases, Service Releases are made available in order to be more timely. Security Advisory and Security Notices will indicate which Maintenance and Service Releases contain fixes for the issues described. Upon request to JTAC, customers will be provided download instructions for a Service Release. Although Juniper does not provide formal Release Note documentation for a Service Release, a list of “PRs fixed” can be provided on request.

Related Links: CVSS Score:5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P)

Risk Level:Medium

Risk Assessment:Information for how Juniper Networks uses CVSS can be found at KB 16446 “Common Vulnerability Scoring System (CVSS) and Juniper’s Security Advisories.”

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