CVE-2018-0021 describes a vulnerability in Juniper Networks Junos OS where incomplete MacSec CKN or CAK keys are automatically padded with zeros. This weakness, affecting various Junos OS versions, significantly reduces key entropy, making them susceptible to dictionary and brute-force attacks. With a CVSS score of 8.8 (High), the vulnerability allows an unauthenticated attacker on the adjacent network to achieve high confidentiality, integrity, and availability impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
15.1x49CPE matchmatch criteria | cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:* | ||
15.1x49CPE matchmatch criteria | cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:* | ||
15.1x49CPE matchmatch criteria | cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:* | ||
15.1x49CPE matchmatch criteria | cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:* | ||
15.1x49CPE matchmatch criteria | cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.