CVE-2021-36213

EUVD-2021-1451
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 73%
Affected Products (NVD)
VendorProductVersion
hashicorpconsul
1.9.0 ≤
𝑥
< 1.9.8
hashicorpconsul
1.9.0 ≤
𝑥
< 1.9.8
hashicorpconsul
1.10.0 ≤
𝑥
< 1.10.1
hashicorpconsul
1.10.0 ≤
𝑥
< 1.10.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
consul
bullseye
1.8.7+dfsg1-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
consul
bionic
needs-triage
focal
needs-triage
groovy
ignored
hirsute
ignored
impish
ignored
jammy
needs-triage
kinetic
ignored
lunar
dne
mantic
not-affected
noble
dne
trusty
dne
xenial
ignored
References
https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855
https://github.com/hashicorp/consul/releases/tag/v1.10.1
https://security.gentoo.org/glsa/202208-09
https://www.hashicorp.com/blog/category/consul
https://discuss.hashicorp.com/t/hcsec-2021-16-consul-s-application-aware-intentions-deny-action-fails-open-when-combined-with-default-deny-policy/26855
https://github.com/hashicorp/consul/releases/tag/v1.10.1
https://security.gentoo.org/glsa/202208-09
https://www.hashicorp.com/blog/category/consul