Vulnerability Details : CVE-2019-9764
HashiCorp Consul 1.4.3 lacks server hostname verification for agent-to-agent TLS communication. In other words, the product behaves as if verify_server_hostname were set to false, even when it is actually set to true. This is fixed in 1.4.4.
Products affected by CVE-2019-9764
- cpe:2.3:a:hashicorp:consul:1.4.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-9764
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9764
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST | |
|
7.4
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
2.2
|
5.2
|
NIST |
CWE ids for CVE-2019-9764
-
The product does not properly verify that the source of data or communication is valid.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9764
-
https://github.com/hashicorp/consul/issues/5519
Consul CVE-2019-9764: Server Hostname Verification in agent-to-agent TLS is skipped even when configured · Issue #5519 · hashicorp/consul · GitHubExploit;Third Party Advisory
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