Support Support Downloads Knowledge Base Case Manager My Juniper Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

2013-04 Security Bulletin: Junos: J-Web Sajax remote code execution

0

0

Article ID: JSA10560 SECURITY_ADVISORIES Last Updated: 07 Oct 2014Version: 4.0
Legacy Advisory Id:
PSN-2013-04-914
Product Affected:
This issue can affect all Junos devices with J-Web enabled.
Problem:

An insufficient validation vulnerability in J-Web can allow an authenticated user to execute arbitrary commands. This may allow a user with low privilege (such as read only access) to get complete administrative access. This scope of this vulnerability is limited to only those users with valid, authenticated login credentials.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

No other Juniper Networks products or platforms are affected by this issue.
Solution:

The following software releases have been updated to resolve this specific issue: 10.4R13, 11.4R7, 12.1R5, 12.1X44-D15, 12.1X44-D20, 12.1X45-D10, 12.2R3, 12.3R1, 13.2R6, 13.2X51-D25, 13.3R4, 14.1R3, 14.2R1, and all subsequent releases.

This issue is being tracked as PR 826518 and is 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:
Disable J-Web, or limit access to only trusted hosts.

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.
CVSS Score:
9.0 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Severity Level:
Critical
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."
Acknowledgements:
The Juniper SIRT would like to acknowledge and thank Phil from Sense of Security Labs for reporting this vulnerability.

Related Links

Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search