CVE-2016-4922

Junos: Privilege escalation vulnerabilities in Junos CLI

Description

Certain combinations of Junos OS CLI commands and arguments have been found to be exploitable in a way that can allow unauthorized 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. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.1X46 prior to 12.1X46-D60; 12.1X47 prior to 12.1X47-D45; 12.3 prior to 12.3R12; 12.3X48 prior to 12.3X48-D35; 13.2 prior to 13.2R9; 13.3 prior to 13.3R4-S11, 13.3R9; 14.1 prior to 14.1R4-S12, 14.1R7; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R5; 15.1 prior to 15.1F4, 15.1R3; 15.1X49 prior to 15.1X49-D60; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.

Remediation

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.

Category

8.4
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA10763 issue tracking vendor advisory
http://www.securityfocus.com/bid/93534 vdb entry third party advisory
http://www.securitytracker.com/id/1037013 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-4922?
CVE-2016-4922 has been scored as a high severity vulnerability.
How to fix CVE-2016-4922?
As a workaround for remediating CVE-2016-4922: 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.
Is CVE-2016-4922 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-4922 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2016-4922?
CVE-2016-4922 affects Juniper Networks Junos OS.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.