Ubuntu.comUB:CVE-2021-36213CVE-2021-36213
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
44.1%
HashiCorp Consul and Consul Enterprise 1.9.0 through 1.10.0 default deny
policy with a single L7 application-aware intention deny action cancels
out, causing the intention to incorrectly fail open, allowing L4 traffic.
Fixed in 1.9.8 and 1.10.1.
References
discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855
github.com/hashicorp/consul/releases/tag/v1.10.1
launchpad.net/bugs/cve/CVE-2021-36213
nvd.nist.gov/vuln/detail/CVE-2021-36213
security-tracker.debian.org/tracker/CVE-2021-36213
www.cve.org/CVERecord?id=CVE-2021-36213
www.hashicorp.com/blog/category/consul
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
44.1%