CVE-2023-4680 Vault's Transit Secrets Engine Allowed Nonce Specified without Convergent Encryption

2023-09-1423:06:24

CWE-323

HashiCorp

github.com

hashicorp vault

nonce

convergent encryption

decryption

cve-2023-4680

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

7.4

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

total

JSON

HashiCorp Vault and Vault Enterprise transit secrets engine allowed authorized users to specify arbitrary nonces, even with convergent encryption disabled. The encrypt endpoint, in combination with an offline attack, could be used to decrypt arbitrary ciphertext and potentially derive the authentication subkey when using transit secrets engine without convergent encryption. Introduced in 1.6.0 and fixed in 1.14.3, 1.13.7, and 1.12.11.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:hashicorp:vault:*:*:*:*:*:*:*:*"
    ],
    "vendor": "hashicorp",
    "product": "vault",
    "versions": [
      {
        "status": "affected",
        "version": "1.14.0",
        "lessThan": "1.14.3",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "1.13.0",
        "lessThan": "1.13.7",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "1.12.0",
        "lessThan": "1.12.11",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "1.6.0",
        "lessThan": "1.12.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:2.3:a:hashicorp:vault_enterprise:*:*:*:*:*:*:*:*"
    ],
    "vendor": "hashicorp",
    "product": "vault_enterprise",
    "versions": [
      {
        "status": "affected",
        "version": "1.14.0",
        "lessThan": "1.14.3",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "1.13.0",
        "lessThan": "1.13.7",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "1.12.0",
        "lessThan": "1.12.11",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "1.6.0",
        "lessThan": "1.12.0",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]