medium
5.3
CWE
200
Advisory Published
Updated

CVE-2020-1628: Junos OS: EX4300: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces

First published: Wed Apr 08 2020(Updated: )

Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an EX4300 switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet, leading to an information exposure vulnerability. This issue affects Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D53 on EX4300; 15.1 versions prior to 15.1R7-S6 on EX4300; 15.1X49 versions prior to 15.1X49-D200, 15.1X49-D210 on EX4300; 16.1 versions prior to 16.1R7-S7 on EX4300; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2 on EX4300; 17.2 versions prior to 17.2R3-S3 on EX4300; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on EX4300; 17.4 versions prior to 17.4R2-S9, 17.4R3 on EX4300; 18.1 versions prior to 18.1R3-S8 on EX4300; 18.2 versions prior to 18.2R3-S2 on EX4300; 18.3 versions prior to 18.3R2-S3, 18.3R3, 18.3R3-S1 on EX4300; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on EX4300; 19.1 versions prior to 19.1R1-S4, 19.1R2 on EX4300; 19.2 versions prior to 19.2R1-S4, 19.2R2 on EX4300; 19.3 versions prior to 19.3R1-S1, 19.3R2 on EX4300.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
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 JUNOS=14.1x53-d40
Juniper JUNOS=14.1x53-d42
Juniper JUNOS=14.1x53-d43
Juniper JUNOS=14.1x53-d44
Juniper JUNOS=14.1x53-d45
Juniper JUNOS=14.1x53-d48
Juniper JUNOS=14.1x53-d50
Juniper JUNOS=14.1x53-d51
Juniper JUNOS=15.1
Juniper JUNOS=15.1-a1
Juniper JUNOS=15.1-f
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-f5-s7
Juniper JUNOS=15.1-f6
Juniper JUNOS=15.1-f6-s1
Juniper JUNOS=15.1-f6-s12
Juniper JUNOS=15.1-f6-s2
Juniper JUNOS=15.1-f6-s3
Juniper JUNOS=15.1-f6-s4
Juniper JUNOS=15.1-f6-s7
Juniper JUNOS=15.1-f7
Juniper JUNOS=15.1-r1
Juniper JUNOS=15.1-r2
Juniper JUNOS=15.1-r3
Juniper JUNOS=15.1-r4
Juniper JUNOS=15.1-r4-s7
Juniper JUNOS=15.1-r4-s8
Juniper JUNOS=15.1-r4-s9
Juniper JUNOS=15.1-r5
Juniper JUNOS=15.1-r5-s1
Juniper JUNOS=15.1-r5-s5
Juniper JUNOS=15.1-r5-s6
Juniper JUNOS=15.1-r6
Juniper JUNOS=15.1-r6-s1
Juniper JUNOS=15.1-r6-s2
Juniper JUNOS=15.1-r6-s6
Juniper JUNOS=15.1-r7
Juniper JUNOS=15.1-r7-s1
Juniper JUNOS=15.1-r7-s2
Juniper JUNOS=15.1-r7-s3
Juniper JUNOS=15.1-r7-s4
Juniper JUNOS=15.1-r7-s5
Juniper JUNOS=15.1x49
Juniper JUNOS=15.1x49-d10
Juniper JUNOS=15.1x49-d100
Juniper JUNOS=15.1x49-d110
Juniper JUNOS=15.1x49-d120
Juniper JUNOS=15.1x49-d130
Juniper JUNOS=15.1x49-d140
Juniper JUNOS=15.1x49-d15
Juniper JUNOS=15.1x49-d150
Juniper JUNOS=15.1x49-d160
Juniper JUNOS=15.1x49-d170
Juniper JUNOS=15.1x49-d180
Juniper JUNOS=15.1x49-d190
Juniper JUNOS=15.1x49-d20
Juniper JUNOS=15.1x49-d25
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=16.1
Juniper JUNOS=16.1-r1
Juniper JUNOS=16.1-r2
Juniper JUNOS=16.1-r3
Juniper JUNOS=16.1-r3-s10
Juniper JUNOS=16.1-r3-s11
Juniper JUNOS=16.1-r4
Juniper JUNOS=16.1-r4-s12
Juniper JUNOS=16.1-r4-s2
Juniper JUNOS=16.1-r4-s3
Juniper JUNOS=16.1-r4-s4
Juniper JUNOS=16.1-r4-s6
Juniper JUNOS=16.1-r5
Juniper JUNOS=16.1-r5-s4
Juniper JUNOS=16.1-r6-s1
Juniper JUNOS=16.1-r6-s6
Juniper JUNOS=16.1-r7
Juniper JUNOS=16.1-r7-s2
Juniper JUNOS=16.1-r7-s3
Juniper JUNOS=16.1-r7-s4
Juniper JUNOS=16.1-r7-s5
Juniper JUNOS=16.1-r7-s6
Juniper JUNOS=17.1
Juniper JUNOS=17.1-r1
Juniper JUNOS=17.1-r2
Juniper JUNOS=17.1-r2-s1
Juniper JUNOS=17.1-r2-s10
Juniper JUNOS=17.1-r2-s2
Juniper JUNOS=17.1-r2-s3
Juniper JUNOS=17.1-r2-s4
Juniper JUNOS=17.1-r2-s5
Juniper JUNOS=17.1-r2-s6
Juniper JUNOS=17.1-r2-s7
Juniper JUNOS=17.1-r2-s8
Juniper JUNOS=17.1-r2-s9
Juniper JUNOS=17.1-r3
Juniper JUNOS=17.1-r3-s1
Juniper JUNOS=17.2
Juniper JUNOS=17.2-r1
Juniper JUNOS=17.2-r1-s1
Juniper JUNOS=17.2-r1-s2
Juniper JUNOS=17.2-r1-s3
Juniper JUNOS=17.2-r1-s4
Juniper JUNOS=17.2-r1-s5
Juniper JUNOS=17.2-r1-s7
Juniper JUNOS=17.2-r1-s8
Juniper JUNOS=17.2-r2
Juniper JUNOS=17.2-r2-s6
Juniper JUNOS=17.2-r2-s7
Juniper JUNOS=17.2-r3-s1
Juniper JUNOS=17.2-r3-s2
Juniper JUNOS=17.3
Juniper JUNOS=17.3-r1-s1
Juniper JUNOS=17.3-r2
Juniper JUNOS=17.3-r2-s1
Juniper JUNOS=17.3-r2-s2
Juniper JUNOS=17.3-r2-s3
Juniper JUNOS=17.3-r2-s4
Juniper JUNOS=17.3-r3
Juniper JUNOS=17.3-r3-s1
Juniper JUNOS=17.3-r3-s2
Juniper JUNOS=17.3-r3-s3
Juniper JUNOS=17.3-r3-s4
Juniper JUNOS=17.3-r3-s5
Juniper JUNOS=17.3-r3-s6
Juniper JUNOS=17.4
Juniper JUNOS=17.4-r1
Juniper JUNOS=17.4-r1-s1
Juniper JUNOS=17.4-r1-s2
Juniper JUNOS=17.4-r1-s4
Juniper JUNOS=17.4-r1-s5
Juniper JUNOS=17.4-r1-s6
Juniper JUNOS=17.4-r1-s7
Juniper JUNOS=17.4-r2
Juniper JUNOS=17.4-r2-s1
Juniper JUNOS=17.4-r2-s2
Juniper JUNOS=17.4-r2-s3
Juniper JUNOS=17.4-r2-s4
Juniper JUNOS=17.4-r2-s5
Juniper JUNOS=17.4-r2-s6
Juniper JUNOS=17.4-r2-s7
Juniper JUNOS=17.4-r2-s8
Juniper JUNOS=18.1
Juniper JUNOS=18.1-r2
Juniper JUNOS=18.1-r2-s1
Juniper JUNOS=18.1-r2-s2
Juniper JUNOS=18.1-r2-s4
Juniper JUNOS=18.1-r3
Juniper JUNOS=18.1-r3-s1
Juniper JUNOS=18.1-r3-s2
Juniper JUNOS=18.1-r3-s3
Juniper JUNOS=18.1-r3-s4
Juniper JUNOS=18.1-r3-s6
Juniper JUNOS=18.1-r3-s7
Juniper JUNOS=18.2
Juniper JUNOS=18.2-r1-s3
Juniper JUNOS=18.2-r1-s5
Juniper JUNOS=18.2-r2-s1
Juniper JUNOS=18.2-r2-s2
Juniper JUNOS=18.2-r2-s3
Juniper JUNOS=18.2-r2-s4
Juniper JUNOS=18.2-r2-s5
Juniper JUNOS=18.2-r2-s6
Juniper JUNOS=18.2-r3
Juniper JUNOS=18.2-r3-s1
Juniper JUNOS=18.3
Juniper JUNOS=18.3-r1
Juniper JUNOS=18.3-r1-s1
Juniper JUNOS=18.3-r1-s2
Juniper JUNOS=18.3-r1-s3
Juniper JUNOS=18.3-r1-s5
Juniper JUNOS=18.3-r2
Juniper JUNOS=18.3-r2-s1
Juniper JUNOS=18.3-r2-s2
Juniper JUNOS=18.3-r3
Juniper JUNOS=18.4
Juniper JUNOS=18.4-r1
Juniper JUNOS=18.4-r1-s1
Juniper JUNOS=18.4-r1-s2
Juniper JUNOS=18.4-r1-s3
Juniper JUNOS=18.4-r1-s4
Juniper JUNOS=18.4-r2
Juniper JUNOS=18.4-r2-s1
Juniper JUNOS=18.4-r2-s2
Juniper JUNOS=19.1
Juniper JUNOS=19.1-r1
Juniper JUNOS=19.1-r1-s1
Juniper JUNOS=19.1-r1-s2
Juniper JUNOS=19.1-r1-s3
Juniper JUNOS=19.2
Juniper JUNOS=19.2-r1
Juniper JUNOS=19.2-r1-s1
Juniper JUNOS=19.2-r1-s2
Juniper JUNOS=19.2-r1-s3
Juniper JUNOS=19.3-r1
Juniper Ex4300

Remedy

The following software releases have been updated to resolve this specific issue: 14.1X53-D53, 15.1R7-S6, 15.1X49-D200, 15.1X49-D210, 16.1R7-S7, 17.1R2-S11, 17.1R3-S2, 17.2R3-S3, 17.3R2-S5, 17.3R3-S7, 17.4R2-S9, 17.4R3, 18.1R3-S8, 18.2R3-S2, 18.3R2-S3, 18.3R3, 18.3R3-S1, 18.4R1-S5, 18.4R2-S3, 18.4R3, 19.1R1-S4, 19.1R2, 19.2R1-S4, 19.2R2, 19.3R1-S1, 19.3R2, 19.4R1, and all subsequent releases.

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