Junos OS: Login credentials are vulnerable to brute force attacks through the REST API

Summary

If REST API is enabled, the Junos OS login credentials are vulnerable to brute force attacks. The high default connection limit of the REST API may allow an attacker to brute-force passwords using advanced scripting techniques. Additionally, administrators who do not enforce a strong password policy can increase the likelihood of success from brute force attacks. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S3; 15.1X49 versions prior to 15.1X49-D160; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1X53-D69; 16.1 versions prior to 16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3; 16.1X65 versions prior to 16.1X65-D49; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S2; 17.4 versions prior to 17.4R1-S6, 17.4R2-S2; 18.1 versions prior to 18.1R2-S4, 18.1R3-S1; 18.2 versions prior to 18.2R1-S5; 18.2X75 versions prior to 18.2X75-D30; 18.3 versions prior to 18.3R1-S1.

Timeline

1. Apr 10, 2019, 8:13 PM UTCCVE published
2. Sep 16, 2024, 4:12 PM UTCRecord last updated

Affected versions

• Juniper Networks Junos OS

  From 14.1X53 · fixed in 14.1X53-D49; From 15.1X49 · fixed in 15.1X49-D160; From 16.1X65 · fixed in 16.1X65-D49; From 16.2 · fixed in 16.2R2-S7; From 17.3 · fixed in 17.3R3-S2; From 18.2 · fixed in 18.2R1-S5; From 18.2X75 · fixed in 18.2X75-D30; From 18.3 · fixed in 18.3R1-S1

References 2