CVE-2018-0021

Description

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 prior to 14.1R10, 14.1R9; 14.1X53 versions prior to 14.1X53-D47; 15.1 versions prior to 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D100; 15.1X53 versions prior to 15.1X53-D59; 16.1 versions prior to 16.1R3-S8, 16.1R4-S8, 16.1R5; 16.2 versions prior to 16.2R1-S6, 16.2R2; 17.1 versions prior to 17.1R2.

Risk Information

Base Score

8.8

MODERATE

Vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.16

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2018-0002,CVE-2018-0008,CVE-2018-0019,CVE-2018-0021 are fixed in junos 14.1r9	NCM
Multiple Vulnerabilities are fixed in junos 15.1r4-s9	NCM
Multiple Vulnerabilities are fixed in junos 16.1r3-s8	NCM
Multiple Vulnerabilities are fixed in junos 16.2r1-s6	NCM
Vulnerabilities CVE-2018-0007,CVE-2018-0021 are fixed in junos 17.1r2	NCM
CVE-2018-0021	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1
PATCH-1704488	Security Update for junos 9.2r1

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234