PT-2022-25492 · Hashicorp+3 · Hashicorp Consul Enterprise+4
CVE-2022-40716
·
Published
2022-09-23
·
Updated
2025-06-24
CVSS v2.0
6.8
Medium
| Vector | AV:N/AC:L/Au:S/C:N/I:C/A:N |
Name of the Vulnerable Software and Affected Versions
HashiCorp Consul and Consul Enterprise versions prior to 1.11.9, 1.12.5, and 1.13.2
Description
The issue concerns HashiCorp Consul and Consul Enterprise, where versions prior to 1.11.9, 1.12.5, and 1.13.2 do not check for multiple SAN URI values in a Certificate Signing Request (CSR) on the internal RPC endpoint. This enables an attacker to leverage privileged access and bypass service mesh intentions by sending a specially crafted CSR directly to Consul's internal server agent RPC endpoint, including multiple SAN URI values with additional service names.
Recommendations
For versions prior to 1.11.9, update to version 1.11.9 or later.
For versions prior to 1.12.5, update to version 1.12.5 or later.
For versions prior to 1.13.2, update to version 1.13.2 or later.
As a temporary workaround, consider restricting access to the internal RPC endpoint to minimize the risk of exploitation.
Exploit
Fix
DoS
Information Disclosure
Unchecked Return Value
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Related Identifiers
Affected Products
Alt Linux
Hashicorp Consul Enterprise
Debian
Hashicorp Consul
Red Os