Critical severity · published Jan 14, 2022
CVE-2021-28506
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…
9.1
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EO
Eos · Arista
4.24.0 through 4.24.7m; 4.25.0 through 4.25.3; 4.25.4 through 4.25.4m; 4.25.5 through 4.25.5.1m; 4.26.0 through 4.26.2f · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28506
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28506
Exploit
https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071
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