CVE-2020-26244
Python oic - OpenID Connect Cryptographic Vulnerabilities
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.
INFO
Published Date :
Dec. 2, 2020, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 5:19 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
1.6
Affected Products
The following products are affected by CVE-2020-26244
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-26244.
| URL | Resource |
|---|---|
| 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/security/advisories/GHSA-4fjv-pmhg-3rfg | Third Party Advisory |
| https://pypi.org/project/oic/ | Product Vendor 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/security/advisories/GHSA-4fjv-pmhg-3rfg | Third Party Advisory |
| https://pypi.org/project/oic/ | Product Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-26244 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26244 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498 Added Reference https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 Added Reference https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg Added Reference https://pypi.org/project/oic/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 08, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498 No Types Assigned https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498 Patch, Third Party Advisory Changed Reference Type https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 No Types Assigned https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 Third Party Advisory Changed Reference Type https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg No Types Assigned https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg Third Party Advisory Changed Reference Type https://pypi.org/project/oic/ No Types Assigned https://pypi.org/project/oic/ Product, Vendor Advisory Added CWE NIST CWE-347 Added CPE Configuration OR *cpe:2.3:a:python_openid_connect_project:python_openid_connect:*:*:*:*:*:*:*:* versions up to (excluding) 1.2.1 -
CVE Modified by [email protected]
Dec. 02, 2020
Action Type Old Value New Value Changed 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. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26244 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-26244
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.16 }} -0.01%
score
0.32878
percentile