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cve[email protected]CVE-2023-46129
HistoryOct 31, 2023 - 12:15 a.m.

CVE-2023-46129

2023-10-3100:15:09
CWE-325
CWE-321
web.nvd.nist.gov
147
cve-2023-46129
nats.io
nkeys library
encryption
authentication
security issue
patch
vulnerability

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

20.7%

NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing. The cryptographic key handling library, nkeys, recently gained support for encryption, not just for signing/authentication. This is used in nats-server 2.10 (Sep 2023) and newer for authentication callouts. In nkeys versions 0.4.0 through 0.4.5, corresponding with NATS server versions 2.10.0 through 2.10.3, the nkeys library’s xkeys encryption handling logic mistakenly passed an array by value into an internal function, where the function mutated that buffer to populate the encryption key to use. As a result, all encryption was actually to an all-zeros key. This affects encryption only, not signing.
FIXME: FILL IN IMPACT ON NATS-SERVER AUTH CALLOUT SECURITY. nkeys Go library 0.4.6, corresponding with NATS Server 2.10.4, has a patch for this issue. No known workarounds are available. For any application handling auth callouts in Go, if using the nkeys library, update the dependency, recompile and deploy that in lockstep.

Affected configurations

Vulners
NVD
Node
nats-ionkeysRange2.10.0–2.10.4
OR
nats-ionkeysRange0.4.0–0.4.6

CNA Affected

[
  {
    "vendor": "nats-io",
    "product": "nkeys",
    "versions": [
      {
        "version": ">= 2.10.0, < 2.10.4",
        "status": "affected"
      },
      {
        "version": ">= 0.4.0, < 0.4.6",
        "status": "affected"
      }
    ]
  }
]

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

7.4

Confidence

High

EPSS

0.001

Percentile

20.7%