High severity · published Sep 9, 2021
CVE-2021-28497
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, the bash shell might be accessible to unprivileged…
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, the bash shell might be accessible to unprivileged users in situations where they should not have access. This issue affects: Arista Metamako Operating System All 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
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Metamako Operating System · Arista
through 0.26.6; 0.31.0 before 0.32.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28497
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28497
Mitigation
https://www.arista.com/en/support/advisories-notices/security-advisories/12913-security-advisory-65
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