CVE-2020-26244

Published: Dic 02, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-0119 Aliases: GHSA-4fjv-pmhg-3rfg, PYSEC-2020-69
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,8
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: none
MEDIUM 4,9
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: single
Confidentiality: partial
Integrity: partial
Availability: none

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0016
Percentile
0,4th
Updated

EPSS Score Trend (Last 91 Days)

325

Missing Cryptographic Step

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Accountability Non-Repudiation
Potential Impacts:
Bypass Protection Mechanism Read Application Data Modify Application Data Hide Activities
Applicable Platforms
All platforms may be affected
View CWE Details
347

Improper Verification of Cryptographic Signature

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Integrity Confidentiality
Potential Impacts:
Gain Privileges Or Assume Identity Modify Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Python Openid Connect by Python Openid Connect Project

Product Information
Vendor Python Openid Connect Project
Product Python Openid Connect
Version Range Affected
To 1.2.1 (exclusive)
cpe:2.3:a:python_openid_connect_project:python_openid_connect:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f2…
Patch Third Party Advisory
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb024…
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1
Third Party Advisory
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-…
Third Party Advisory
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg
https://pypi.org/project/oic/
Product Vendor Advisory
https://pypi.org/project/oic/
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f2…
Patch Third Party Advisory
https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb024…
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1
Third Party Advisory
https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-…
Third Party Advisory
https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg
https://pypi.org/project/oic/
Product Vendor Advisory
https://pypi.org/project/oic/