CVE-2020-1628 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

https://kb.juniper.net/JSA11008

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3