CVE-2023-26150 : Versions of the package asyncua before 0.9.96 are vulnerable to Improper Authent

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.

Published 2023-10-03 05:15:50

Updated 2023-10-04 17:12:15

Source Snyk

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2023-26150

Freeopcua » Opcua-asyncio » For Python
Versions before (<) 0.9.96
cpe:2.3:a:freeopcua:opcua-asyncio:*:*:*:*:*:python:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2023-26150

EPSS FAQ

0.13%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 49 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-26150

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	3.9	2.5	Snyk
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2023-26150

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2023-26150

https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513

check if session is active · FreeOpcUa/opcua-asyncio@b4106df · GitHub
Patch
https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96

Release v0.9.96 · FreeOpcUa/opcua-asyncio · GitHub
Product;Release Notes

CVEs referencing this url
https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435

Improper Authentication in asyncua | CVE-2023-26150 | Snyk
Exploit;Patch;Third Party Advisory
https://github.com/FreeOpcUa/opcua-asyncio/issues/1014

Illegal access to Address Space · Issue #1014 · FreeOpcUa/opcua-asyncio · GitHub
Exploit;Issue Tracking;Third Party Advisory
https://github.com/FreeOpcUa/opcua-asyncio/pull/1015

check if session is activated by schroeder- · Pull Request #1015 · FreeOpcUa/opcua-asyncio · GitHub
Patch
https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a

Revert "releax test_secure_channel_key_expiration test" · FreeOpcUa/opcua-asyncio@2be7ce8 · GitHub
Patch
https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121

illegal access to address space · GitHub
Exploit;Third Party Advisory

Jump to

Vulnerability Details : CVE-2023-26150

Products affected by CVE-2023-26150

Exploit prediction scoring system (EPSS) score for CVE-2023-26150

CVSS scores for CVE-2023-26150

CWE ids for CVE-2023-26150

References for CVE-2023-26150