CVE-2021-28507

An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the denied requests being forwarded to the agent.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
AristaCNA
5.5 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 29%
VendorProductVersion
aristaeos
4.23.0 ≤
𝑥
≤ 4.23.9m
aristaeos
4.24.0 ≤
𝑥
≤ 4.24.7m
aristaeos
4.25.0 ≤
𝑥
≤ 4.25.3
aristaeos
4.25.4 ≤
𝑥
≤ 4.25.4m
aristaeos
4.25.5 ≤
𝑥
≤ 4.25.5.1m
aristaeos
4.26.0 ≤
𝑥
≤ 4.26.2f
aristaeos
4.21.0f:f
aristaeos
4.21.1f:f
aristaeos
4.21.3f:f
aristaeos
4.22.0f:f
aristaeos
4.22.1f:f
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071
https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071