title: An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.
description: An issue has recently been discovered in Arista EOS where certain gNOI APIs incorrectly skip authorization and authentication which could potentially allow a factory reset of the device.
problem types: CWE-285 Improper Authorization
affected:
{
product: EOS
vendor: Arista Networks
versions:
lessThanOrEqual: 4.26.0, status: affected, version: 4.26.2F, versionType: custom
lessThanOrEqual: 4.25.5, status: affected, version: 4.25.5.1M, versionType: custom
lessThanOrEqual: 4.25.4, status: affected, version: 4.25.4M, versionType: custom
lessThanOrEqual: 4.25.0, status: affected, version: 4.25.3, versionType: custom
lessThanOrEqual: 4.24.2F, status: affected, version: 4.24.7M, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.1
baseSeverity: CRITICAL
confidentialityImpact: NONE
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
version: 3.1
]
solutions: The recommended resolution is to upgrade to a remediated software version at your earliest convenience. Arista recommends customers move to the latest version of each release.
CVE-2021-28506 has been fixed in the following releases:
4.26.3M and later releases in the 4.26.x train
4.25.6M and later releases in the 4.25.x train
4.25.4.1M and later releases in the 4.25.4.x train
4.24.8M and later releases in the 4.24.x train
workarounds: No mitigation options available