"value":"A specific device configuration can result in a commit failure condition. When this occurs, a user is logged in without being prompted for a password while trying to login through console, ssh, ftp, telnet or su, etc., This issue relies upon a device configuration precondition to occur. Typically, device configurations are the result of a trusted administrative change to the system's running configuration. The following error messages may be seen when this failure occurs: mgd: error: commit failed: (statements constraint check failed) Warning: Commit failed, activating partial configuration. Warning: Edit the router configuration to fix these errors. If the administrative changes are not made that result in such a failure, then this issue is not seen. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 12.3 prior to 12.3R10, 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2 prior to 13.2R8; 13.3 prior to 13.3R7; 14.1 prior to 14.1R4-S12, 14.1R5, 14.1R6; 14.1X53 prior to 14.1X53-D30; 14.2 prior to 14.2R4; 15.1 prior to 15.1F2, 15.1F3, 15.1R2."
"exploit":"This issue was found during internal product security testing. Juniper SIRT is not aware of any malicious exploitation of this vulnerability.",
"solution":"The following software releases have been updated to resolve this specific issue: 12.3R10, 12.3R11, 12.3X48-D20, 13.2R8, 13.3R7, 14.1R4-S12, 14.1R5, 14.1R6, 14.1X53-D30, 14.2R4, 15.1F2, 15.1F3, 15.1R2, 15.1X49-D10, 16.1R1, and all subsequent releases.\n\nThis issue is being tracked as PR 1075580 and is visible on the Customer Support website.",
"work_around":[
{
"lang":"eng",
"value":"Make sure authentication works as expected after a system configuration change.\n\nUse the SSH certificate based authentication.\n\nUse access lists or firewall filters to limit access to the device only from trusted administrative hosts, networks and users."