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2014-01 Security Bulletin: Junos: Multiple privilege escalation vulnerabilities in Junos CLI (CVE-2014-0615)

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Article ID: JSA10608 SECURITY_ADVISORIES Last Updated: 09 Jan 2014Version: 2.0
Product Affected:
This issue can affect any product or platform running Junos OS.
Problem:
Certain combinations of Junos OS CLI commands and arguments have been found to be exploitable in a way that can allow root access to the operating system. This may allow any user with permissions to run these CLI commands the ability to achieve elevated privileges and gain complete control of the device.

These issues were 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-2014-0615.
Solution:
The following software releases have been updated to resolve this specific issue:
  • All Junos OS software releases built on or after 2013-12-17, or
  • Junos OS 10.4R16, 11.4R10, 12.1R8-S2, 12.1X44-D30, 12.1X45-D20, 12.1X46-D10, 12.2R7, 12.3R5, 13.1R3-S1, 13.2R2, 13.3R1, and all subsequent releases (i.e. all releases built after 13.3R1).

Customers can confirm the build date of any Junos OS release by issuing the command 'show version detail'.

These issues are being tracked as PRs 924191, 921499, 921219, 915313, 915961, 914042, 915958, 915957, 913831, 913449, 913328, 912707, 751925 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:
Use access lists or firewall filters to limit access to the router's CLI only from trusted hosts.

Restrict access to the CLI to only highly trusted administrators.
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:
7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Severity Level:
High
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:
 

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