CVE-2021-36213: hashicorp consul
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-36213CGA-3mxp-g5mv-gx5vCGA-44rf-w3j6-xx7wCGA-6c39-mv7f-pxx7CGA-784c-qcc5-vmm2CGA-hj26-3xmg-cjm7CGA-vjvr-wmgf-wrvhGHSA-8h2g-r292-j8xhBIT-consul-2021-36213GO-2022-0895
Published 17-07-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-36213 is a high (CVSS 7.5) vulnerability in hashicorp consul. EPSS estimates a 1.69% chance of exploitation in the next 30 days, higher than 76.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.69%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Related 6Timeline
- 17-07-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
6 scores · 5 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesAll 5 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · GoEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.69%
Chance of exploitation in the next 30 days
Percentile
77%
Versus all other CVEs
30-day change
0.00 pp
From 1.69% on 20-09-2026
20-09-202620-10-2026
EPSS score1.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Chainguard3 products
- k3d< 5.6.0-r11
- k3d-proxy< 5.6.0-r11
- k3d-tools< 5.6.0-r11
Wolfi3 products
- k3d< 5.6.0-r11
- k3d-proxy< 5.6.0-r11
- k3d-tools< 5.6.0-r11
Github.com/hashicorp1 product
- consul< 1.10.1
Hashicorp1 product
- consul≥ 1.9.0, < 1.9.8 | ≥ 1.10.0, < 1.10.1
Ubuntu1 product
- consulAll versions (No fix recorded)
5 vendors · 9 products
References
9 links- github.com/hashicorp/consul/releases/tag/v1.10.1X Refsource CONFIRMREPORTAdvisoryWEBRelease NotesThird Party Advisory
