Paper/Archive/CVE-2021-28495

CVE-2021-28495

Arista Metamako Operating System — In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, user authenti…

EPSS 0.9%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (NVD)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 60.6.606 × 2012.1 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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

Affected

ProductAffectedFixed inSource

Metamako Operating SystemMOS-0.13 – < MOS-0.13*MOS-0.13*CNA

Metamako Operating SystemMOS-0.26.7 – < MOS-0.26.7MOS-0.26.7CNA

Metamako Operating SystemMOS-0.32.0 – < MOS-0.32.0MOS-0.32.0CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Arista (CNA)7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L

References

refarista.com/en/support/advisories-notices/security-advisories/12914-security-advisory-66