CVE-2021-28495

EUVD-2021-15171
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authentication can be bypassed when API access is enabled via the JSON-RPC APIs. This issue affects: Arista Metamako Operating System All releases in the MOS-0.1x train MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and below releases in the MOS-0.2x train MOS-0.31.1 and below releases in the MOS-0.3x train
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
AristaCNA
7.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 59%
Affected Products (NVD)
VendorProductVersion
aristametamako_operating_system
0.10.0 ≤
𝑥
≤ 0.13.0
aristametamako_operating_system
0.20.0 ≤
𝑥
≤ 0.26.7
aristametamako_operating_system
0.30.0 ≤
𝑥
< 0.32.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66
https://www.arista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66