CVE-2020-26244

描述

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.

如何修補 CVE-2020-26244

要修補 CVE-2020-26244,請將受影響套件升級到下列已修補版本。

• —升級至 1.2.1 或更新版本
• —升級至 62f8d753fa17c8b1f29f8be639cf0b33afb02498 或更新版本

CVE-2020-26244 正在被利用嗎?

低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 1.2.1
• from 0, < 62f8d753fa17c8b1f29f8be639cf0b33afb02498 | from 0, < 1.2.1

CVSS 分數

參考連結(8)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-26244
• PATCHgithub.com/OpenIDC/pyoidc
• PATCHpypi.org/project/oic/
• WEBgithub.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498
• WEB