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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-26244 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score matches with CNA score
CNA:  GitHub, Inc.
Base Score:  6.8 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498 Patch  Third Party Advisory 
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498 Patch  Third Party Advisory 
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 Third Party Advisory 
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 Third Party Advisory 
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg Third Party Advisory 
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg Third Party Advisory 
https://pypi.org/project/oic/ Product  Vendor Advisory 
https://pypi.org/project/oic/ Product  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-347 Improper Verification of Cryptographic Signature cwe source acceptance level NIST   GitHub, Inc.  
CWE-325 Missing Cryptographic Step GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:python_openid_connect_project:python_openid_connect:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.2.1

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-26244
NVD Published Date:
12/02/2020
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.