Improper control of interaction frequency in Junos OS - CVE-2019-0039
Published: May 22, 2019
Vulnerability identifier: #VU18578
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-0039
CWE-ID: CWE-799
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform brute-force attack.
The vulnerability exists due to the high default connection limit of the REST API which does not implement sufficient measures to prevent multiple failed authentication attempts. A remote attacker can brute-force password using advanced scripting techniques.
Affected software
Junos OS
How to mitigate CVE-2019-0039
Install updates from vendor's website.
Junos OS - addressed in versions 14.1X53-D49, 15.1F6-S12, 15.1X49-D160, 15.1X53-D69, 15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1R7-S3, 16.1X65-D49, 16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3, 16.2R2-S7, 17.1R2-S10, 17.1R3, 17.2R1-S8, 17.2R3-S1, 17.3R3-S2, 17.4R1-S6, 17.4R2-S2, 18.1R2-S4, 18.1R3-S1, 18.2X75-D30, 18.2R1-S5, 18.3R1-S1, 18.4R1