CVE-2023-2816 Consul Envoy Extension Downsteam Proxy Configuration By Upstream Service Owner

2023-06-0222:43:34

CWE-266

HashiCorp

github.com

consul

cve-2023-2816

envoy extension

proxy configuration

service owner

security risk

CVSS3

8.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

AI Score

6.7

Confidence

Low

SSVC

Exploitation

poc

Automatable

Technical Impact

total

JSON

Consul and Consul Enterprise allowed any user with service:write permissions to use Envoy extensions configured via service-defaults to patch remote proxy instances that target the configured service, regardless of whether the user has permission to modify the service(s) corresponding to those modified proxies.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:hashicorp:consul:1.15.0:*:*:*:-:*:*:*"
    ],
    "vendor": "hashicorp",
    "product": "consul",
    "versions": [
      {
        "status": "affected",
        "version": "1.15.0",
        "versionType": "custom",
        "lessThanOrEqual": "1.15.2"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "cpes": [
      "cpe:2.3:a:hashicorp:consul:1.15.0:*:*:*:enterprise:*:*:*"
    ],
    "vendor": "hashicorp",
    "product": "consul",
    "versions": [
      {
        "status": "affected",
        "version": "1.15.0",
        "versionType": "custom",
        "lessThanOrEqual": "1.15.2"
      }
    ],
    "defaultStatus": "unaffected"
  }
]