Description
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.
**Note:**
This issue is a result of missing checks for services that require an active session.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | asyncua | < 0.9.96 | 0.9.96 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | python-opcua | No fix yet | — |
| Ubuntu 20.04 LTS | python-opcua | No fix yet | — |
| Ubuntu 18.04 LTS | python-opcua | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | asyncua | < 0.9.96 | 0.9.96 | GHSA-2894-qcqf-g23g |
References
- https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435
- https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121
- https://github.com/FreeOpcUa/opcua-asyncio/issues/1014
- https://github.com/FreeOpcUa/opcua-asyncio/pull/1015
- https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a
- https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96
- https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513