JuniperCVELIST:CVE-2018-0021CVE-2018-0021 Junos OS: Short MacSec keys may allow man-in-the-middle attacks.
8.8 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.8 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
31.6%
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.
CNA Affected
[
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "14.1R10, 14.1R9",
"status": "affected",
"version": "14.1",
"versionType": "custom"
},
{
"lessThan": "14.1X53-D47",
"status": "affected",
"version": "14.1X53",
"versionType": "custom"
},
{
"lessThan": "15.1R4-S9, 15.1R6-S6, 15.1R7",
"status": "affected",
"version": "15.1",
"versionType": "custom"
},
{
"lessThan": "15.1X49-D100",
"status": "affected",
"version": "15.1X49",
"versionType": "custom"
},
{
"lessThan": "15.1X53-D59",
"status": "affected",
"version": "15.1X53",
"versionType": "custom"
},
{
"lessThan": "16.1R3-S8, 16.1R4-S8, 16.1R5",
"status": "affected",
"version": "16.1",
"versionType": "custom"
},
{
"lessThan": "16.2R1-S6, 16.2R2",
"status": "affected",
"version": "16.2",
"versionType": "custom"
},
{
"lessThan": "17.1R2",
"status": "affected",
"version": "17.1",
"versionType": "custom"
}
]
}
]Related
8.8 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.8 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
31.6%