CVE-2021-38698: hashicorp consul Missing Authorization
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2021-38698DEBIAN-CVE-2021-38698CGA-3259-m98j-j3m9CGA-86g7-443q-pjp2CGA-h83j-847v-v3w9CGA-mm95-95hv-6pr4CGA-wfhp-39f5-hwp7CGA-xp6w-gx2g-r4qpGHSA-6hw5-6gcx-phmwBIT-consul-2021-38698GO-2022-0559
Published 07-09-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-38698 is a medium (CVSS 6.5) Missing Authorization vulnerability in hashicorp consul. EPSS estimates a 1.42% chance of exploitation in the next 30 days, higher than 72.5% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
1.42%
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
- 07-09-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
HashiCorp Consul and Consul Enterprise 1.10.1 Txn.Apply endpoint allowed services to register proxies for other services, enabling access to service traffic. Fixed in 1.8.15, 1.9.9 and 1.10.2.
CVSS metrics
7 scores · 6 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · WolfiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · GoEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.42%
Chance of exploitation in the next 30 days
Percentile
73%
Versus all other CVEs
30-day change
0.00 pp
From 1.42% on 20-09-2026
20-09-202620-10-2026
EPSS score1.42%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected 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
Debian1 product
- consulAll versions (No fix recorded)
Github.com/hashicorp1 product
- consul≥ 1.9.0, < 1.9.9 | < 1.8.15 | ≥ 1.10.1, < 1.10.2
Hashicorp1 product
- consul< 1.8.15 | ≥ 1.9.0, < 1.9.9 | ≥ 1.10.0, < 1.10.2
Ubuntu1 product
- consulAll versions (No fix recorded)
6 vendors · 10 products
References
10 links- discuss.hashicorp.com/t/hcsec-2021-24-consul-missing-authorization-check-on-txn-apply-endpoint/29026X Refsource MISCREPORTAdvisoryWEBVendor Advisory
- github.com/hashicorp/consulPACKAGE