PYSEC-2020-69

    Dashboard / Vulnerabilities / PYSEC-2020-69

    PYSEC-2020-69

    Published: 2 Dec 2020Last Modified: 8 Nov 2023

    Summary:

    Details: 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.

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

    Affected packages

    Package

    Name: oic

    Purl: pkg:pypi/oic

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -62f8d753fa17c8b1f29f8be639cf0b33afb02498

    Affected versions

    0.4.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2020-69 | CVE-DB