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ubuntucveUbuntu.comUB:CVE-2021-37218
HistorySep 07, 2021 - 12:00 a.m.

CVE-2021-37218

2021-09-0700:00:00
ubuntu.com
ubuntu.com
11
cve-2021-37218
hashicorp nomad
nomad enterprise
raft rpc layer
privilege escalation
vulnerability
certificate
ca
unix

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

42.8%

HashiCorp Nomad and Nomad Enterprise Raft RPC layer allows non-server
agents with a valid certificate signed by the same CA to access server-only
functionality, enabling privilege escalation. Fixed in 1.0.10 and 1.1.4.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchnomad< anyUNKNOWN
ubuntu20.04noarchnomad< anyUNKNOWN

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

42.8%