high
7.2
CWE
287
Advisory Published
Updated

CVE-2018-0008: Junos OS: commit script may allow unauthenticated root login upon reboot

First published: Wed Jan 10 2018(Updated: )

An unauthenticated root login may allow upon reboot when a commit script is used. A commit script allows a device administrator to execute certain instructions during commit, which is configured under the [system scripts commit] stanza. Certain commit scripts that work without a problem during normal commit may cause unexpected behavior upon reboot which can leave the system in a state where root CLI login is allowed without a password due to the system reverting to a "safe mode" authentication state. Lastly, only logging in physically to the console port as root, with no password, will work. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D71 on SRX; 12.3X48 versions prior to 12.3X48-D55 on SRX; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D40 on QFX, EX; 14.2 versions prior to 14.2R7-S9, 14.2R8; 15.1 versions prior to 15.1F5-S7, 15.1F6-S8, 15.1R5-S6, 15.1R6; 15.1X49 versions prior to 15.1X49-D110 on SRX; 15.1X53 versions prior to 15.1X53-D232 on QFX5200/5110; 15.1X53 versions prior to 15.1X53-D49, 15.1X53-D470 on NFX; 15.1X53 versions prior to 15.1X53-D65 on QFX10K; 16.1 versions prior to 16.1R2. No other Juniper Networks products or platforms are affected by this issue.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper JUNOS=12.1x46
Juniper JUNOS=12.1x46-d10
Juniper JUNOS=12.1x46-d15
Juniper JUNOS=12.1x46-d20
Juniper JUNOS=12.1x46-d25
Juniper JUNOS=12.1x46-d30
Juniper JUNOS=12.1x46-d35
Juniper JUNOS=12.1x46-d40
Juniper JUNOS=12.1x46-d45
Juniper JUNOS=12.1x46-d50
Juniper JUNOS=12.1x46-d55
Juniper JUNOS=12.1x46-d60
Juniper JUNOS=12.1x46-d65
Juniper Srx100
Juniper Srx110
Juniper Srx1400
Juniper Srx1500
Juniper Srx210
Juniper Srx220
Juniper Srx240
Juniper Srx300
Juniper Srx320
Juniper Srx340
Juniper Srx3400
Juniper Srx345
Juniper Srx3600
Juniper Srx4100
Juniper Srx4200
Juniper Srx5400
Juniper Srx550
Juniper Srx5600
Juniper Srx5800
Juniper Srx650
Juniper JUNOS=12.3x48
Juniper JUNOS=12.3x48-d10
Juniper JUNOS=12.3x48-d15
Juniper JUNOS=12.3x48-d20
Juniper JUNOS=12.3x48-d25
Juniper JUNOS=12.3x48-d30
Juniper JUNOS=12.3x48-d35
Juniper JUNOS=12.3x48-d40
Juniper JUNOS=12.3x48-d45
Juniper JUNOS=12.3x48-d50
Juniper JUNOS=15.1x49
Juniper JUNOS=15.1x49-d10
Juniper JUNOS=15.1x49-d100
Juniper JUNOS=15.1x49-d20
Juniper JUNOS=15.1x49-d30
Juniper JUNOS=15.1x49-d35
Juniper JUNOS=15.1x49-d40
Juniper JUNOS=15.1x49-d45
Juniper JUNOS=15.1x49-d50
Juniper JUNOS=15.1x49-d55
Juniper JUNOS=15.1x49-d60
Juniper JUNOS=15.1x49-d65
Juniper JUNOS=15.1x49-d70
Juniper JUNOS=15.1x49-d75
Juniper JUNOS=15.1x49-d80
Juniper JUNOS=15.1x49-d90
Juniper JUNOS=14.1
Juniper JUNOS=14.1-r1
Juniper JUNOS=14.1-r2
Juniper JUNOS=14.1-r3
Juniper JUNOS=14.1-r4
Juniper JUNOS=14.1-r5
Juniper JUNOS=14.1-r6
Juniper JUNOS=14.1-r7
Juniper JUNOS=14.1x53
Juniper JUNOS=14.1x53-d10
Juniper JUNOS=14.1x53-d15
Juniper JUNOS=14.1x53-d16
Juniper JUNOS=14.1x53-d25
Juniper JUNOS=14.1x53-d26
Juniper JUNOS=14.1x53-d27
Juniper JUNOS=14.1x53-d30
Juniper JUNOS=14.1x53-d35
Juniper Ex2200
Juniper Ex2300
Juniper Ex3300
Juniper Ex3400
Juniper Ex4200
Juniper Ex4300
Juniper Ex4500
Juniper Ex4550
Juniper EX4600
Juniper Ex6200
Juniper Ex8200
Juniper Ex9200
Juniper Qfx10000
Juniper Qfx3500
Juniper Qfx3600
Juniper Qfx5100
Juniper Qfx5110
Juniper Qfx5200
Juniper JUNOS=14.2
Juniper JUNOS=14.2-r1
Juniper JUNOS=14.2-r2
Juniper JUNOS=14.2-r3
Juniper JUNOS=14.2-r4
Juniper JUNOS=14.2-r5
Juniper JUNOS=14.2-r6
Juniper JUNOS=14.2-r7
Juniper JUNOS=14.2-r8
Juniper JUNOS=15.1
Juniper JUNOS=15.1-a1
Juniper JUNOS=15.1-f1
Juniper JUNOS=15.1-f2
Juniper JUNOS=15.1-f2-s1
Juniper JUNOS=15.1-f2-s2
Juniper JUNOS=15.1-f2-s3
Juniper JUNOS=15.1-f2-s4
Juniper JUNOS=15.1-f3
Juniper JUNOS=15.1-f4
Juniper JUNOS=15.1-f5
Juniper JUNOS=15.1-f6-s8
Juniper JUNOS=15.1-r5-s6
Juniper JUNOS=15.1-r6
Juniper JUNOS=15.1x53
Juniper JUNOS=15.1x53-d20
Juniper JUNOS=15.1x53-d21
Juniper JUNOS=15.1x53-d210
Juniper JUNOS=15.1x53-d230
Juniper JUNOS=15.1x53-d25
Juniper JUNOS=15.1x53-d30
Juniper JUNOS=15.1x53-d32
Juniper JUNOS=15.1x53-d33
Juniper JUNOS=15.1x53-d34
Juniper JUNOS=15.1x53-d60
Juniper JUNOS=15.1x53-d61
Juniper JUNOS=15.1x53-d62
Juniper JUNOS=15.1x53-d63
Juniper JUNOS=15.1x53-d70
Juniper JUNOS=15.1x53-d470
Juniper Nfx
Juniper JUNOS=15.1x53-d50
Juniper JUNOS=15.1x53-d51
Juniper JUNOS=15.1x53-d52
Juniper JUNOS=15.1x53-d55
Juniper JUNOS=15.1x53-d57
Juniper JUNOS=15.1x53-d64
Juniper JUNOS=16.1-r1

Remedy

The following software releases have been updated to resolve this specific issue: 12.1X46-D71, 12.3X48-D55, 14.1R9, 14.1X53-D40, 14.2R7-S9, 14.2R8, 15.1F5-S7, 15.1R5-S6, 15.1R6, 15.1X49-D110, 15.1X53-D232, 15.1X53-D65, 16.1R2, 16.2R1 and all subsequent releases.

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