CVE-2020-26244 - OpenCVE

Python oic is a Python OpenID Connect implementation. In Python oic before version 1.2.1, there are several related cryptographic issues affecting client implementations that use the library. The issues are: 1) The IdToken signature algorithm was not checked automatically, but only if the expected algorithm was passed in as a kwarg. 2) JWA `none` algorithm was allowed in all flows. 3) oic.consumer.Consumer.parse_authz returns an unverified IdToken. The verification of the token was left to the discretion of the implementator. 4) iat claim was not checked for sanity (i.e. it could be in the future). These issues are patched in version 1.2.1.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact None

AV:N/AC:M/Au:S/C:P/I:P/A:N

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Python Openid Connect Project	Python Openid Connect

Configuration 1 [-]

cpe:2.3:a:python_openid_connect_project:python_openid_connect:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg
https://pypi.org/project/oic/

History

No history.

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2020-12-02T20:05:15

Updated: 2024-08-04T15:56:04.228Z

Reserved: 2020-10-01T00:00:00

Link: CVE-2020-26244

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2020-12-02T20:15:13.430

Modified: 2020-12-08T02:37:03.037

Link: CVE-2020-26244

Redhat

No data.

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