id: PYSEC-2023-189
modified: 2023-10-04T18:37:48.328804Z
published: 2023-10-03T05:15:00Z
aliases:
- CVE-2023-26150
- GHSA-2894-qcqf-g23g
details: "Versions of the package asyncua before 0.9.96 are vulnerable to Improper
  Authentication such that it is possible to access Address Space without encryption
  and authentication.\r\r**Note:**\r\rThis issue is a result of missing checks for
  services that require an active session."
affected:
- package:
    ecosystem: PyPI
    name: asyncua
    purl: pkg:pypi/asyncua
  ranges:
  - type: GIT
    events:
    - introduced: "0"
    - fixed: b4106dfd5037423c9d1810b48a97296b59cde513
    - fixed: 2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a
    repo: https://github.com/FreeOpcUa/opcua-asyncio
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 0.9.96
  versions:
  - 0.5.0
  - 0.5.1
  - 0.6.0
  - 0.6.1
  - 0.8.0
  - 0.8.1
  - 0.8.2
  - 0.8.3
  - 0.8.4
  - 0.9.0
  - 0.9.1
  - 0.9.10
  - 0.9.11
  - 0.9.12
  - 0.9.14
  - 0.9.2
  - 0.9.3
  - 0.9.6
  - 0.9.8
  - 0.9.9
  - 0.9.90
  - 0.9.91
  - 0.9.92
  - 0.9.93
  - 0.9.94
  - 0.9.95
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
references:
- type: FIX
  url: 
    https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513
- type: FIX
  url: 
    https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a
- type: WEB
  url: https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96
- type: EVIDENCE
  url: https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435
- type: FIX
  url: https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435
- type: WEB
  url: https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435
- type: EVIDENCE
  url: https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121
- type: WEB
  url: https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121
- type: EVIDENCE
  url: https://github.com/FreeOpcUa/opcua-asyncio/issues/1014
- type: REPORT
  url: https://github.com/FreeOpcUa/opcua-asyncio/issues/1014
- type: FIX
  url: https://github.com/FreeOpcUa/opcua-asyncio/pull/1015
- type: ADVISORY
  url: https://github.com/advisories/GHSA-2894-qcqf-g23g