3.3
CVSSv2

CVE-2018-0021

Published: 11/04/2018 Updated: 09/10/2019
CVSS v2 Base Score: 3.3 | Impact Score: 2.9 | Exploitability Score: 6.5
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 294
Vector: AV:A/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Summary

If all 64 digits of the connectivity association name (CKN) key or all 32 digits of the connectivity association key (CAK) key are not configured, all remaining digits will be auto-configured to 0. Hence, Juniper devices configured with short MacSec keys are at risk to an increased likelihood that an attacker will discover the secret passphrases configured for these keys through dictionary-based and brute-force-based attacks using spoofed packets. Affected releases are Juniper Networks Junos OS: 14.1 versions before 14.1R10, 14.1R9; 14.1X53 versions before 14.1X53-D47; 15.1 versions before 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions before 15.1X49-D100; 15.1X53 versions before 15.1X53-D59; 16.1 versions before 16.1R3-S8, 16.1R4-S8, 16.1R5; 16.2 versions before 16.2R1-S6, 16.2R2; 17.1 versions before 17.1R2.

Vulnerability Trend

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juniper junos 15.1x49

juniper junos 14.1

juniper junos 14.1x53

juniper junos 15.1x53

juniper junos 16.1

juniper junos 16.2

juniper junos 17.1

juniper junos 15.1