Juniper Junos CVE-2019-0061 Local Privilege Escalation Vulnerability



Date Discovered

October 9, 2019


Juniper Junos is prone to a local privilege-escalation vulnerability. A local attacker can exploit this issue to gain elevated privileges. The following versions of Juniper Junos are affected: Junper Junos 15.1X49 versions prior to 15.1X49-D171 and 15.1X49-D180 Junper Junos 15.1X53 versions prior to 15.1X53-D496 and 15.1X53-D69 Junper Junos 16.1 versions prior to 16.1R7-S4 Junper Junos 16.2 versions prior to 16.2R2-S9 Junper Junos 17.1 versions prior to 17.1R3 Junper Junos 17.2 versions prior to 17.2R1-S8, 17.2R2-S7 and 17.2R3-S1 Junper Junos 17.3 versions prior to 17.3R3-S4 Junper Junos 17.4 versions prior to 17.4R1-S6, 17.4R1-S7, 17.4R2-S3 and 17.4R3 Junper Junos 18.1 versions prior to 18.1R2-S4 and 18.1R3-S4 Junper Junos 18.2 versions prior to 18.2R1-S5, 18.2R2-S2 and 18.2R3 Junper Junos 18.3 versions prior to 18.3R1-S3 and 18.3R2 Junper Junos 18.4 versions prior to 18.4R1-S2 and 18.4R2

Technologies Affected

  • Juniper Junos 15.1X49
  • Juniper Junos 15.1X53
  • Juniper Junos 16.1
  • Juniper Junos 16.2
  • Juniper Junos 17.1
  • Juniper Junos 17.2
  • Juniper Junos 17.3
  • Juniper Junos 17.4
  • Juniper Junos 18.1
  • Juniper Junos 18.2
  • Juniper Junos 18.3
  • Juniper Junos 18.4


Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
Ensure that only trusted users have local, interactive access to affected computers.

To limit the consequences of successful exploits, run the server in a closed or restricted environment.
To limit the impact of a successful exploit, run server software with the least privileges required and in restricted environments while still maintaining functionality.

Updates are available. Please see the references or vendor advisory for more information.



The vendor reported this issue.

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