Vulnerability · Published Oct 3, 2023 · Assigned by snyk
CVE-2023-26150
Medium 6.5
In plain English
A medium-severity improper authentication in asyncua. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 55.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | asyncua | 0.9.96 | GHSA-2894-qcqf-g23g |
| PyPI | asyncua | 0.9.96 | PYSEC-2023-189 |
| Ubuntu:22.04:LTS | python-opcua | no fix listed | UBUNTU-CVE-2023-26150 |
Affected products (as reported)
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P
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