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AUSCERT External Security Bulletin Redistribution
ESB-2016.2406
JSA10766 - 2016-10 Security Bulletin: vMX: Information leak
vulnerability (CVE-2016-4924)
13 October 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Juniper vMX
Publisher: Juniper Networks
Operating System: Juniper
Virtualisation
Impact/Access: Access Privileged Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-4924
Original Bulletin:
http://kb.juniper.net/index?page=content&id=JSA10766
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2016-10 Security Bulletin: vMX: Information leak vulnerability (CVE-2016-4924)
Product Affected:
vMX (Virtual MX Series router)
Problem:
An incorrect permissions vulnerability in vMX may allow local unprivileged
users on a host system read access to vMX or vPFE images and obtain sensitive
information contained in them such as private cryptographic keys.
This issue was found during internal product security testing.
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-2016-4924.
Solution:
This issue has been resolved in vMX 14.1R8, 15.1F6, 16.1 and all subsequent
releases.
This issue is being tracked as PR 1129051 and is visible on the Customer
Support website.
Workaround:
Limit access to only trusted users on the host machine where vMX is deployed.
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.
Modification History:
2016-10-12: Initial publication
Related Links:
KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
Publication Process
KB16765: In which releases are vulnerabilities fixed?
KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories
Report a Vulnerability - How to Contact the Juniper Networks Security Incident
Response Team
CVSS Score:
8.4 (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N)
Risk Level:
High
Acknowledgements:
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