CVE-2020-26244

Katalog CVE

CVSS 6.8 · Medium EPSS 0,83%

Kerentanan Missing Cryptographic Step pada python openid connect project python openid connect. Skor CVSS 3.1 6.8 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

2 Desember 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.8 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-325: Missing Cryptographic Step
CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,83% peluang dieksploitasi; lebih tinggi dari 56,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://pypi.org/project/oic/ product · advisory vendor
• https://github.com/OpenIDC/pyoidc/commit/62f8d753fa17c8b1f29f8be639cf0b33afb02498 patch · advisory pihak ketiga
• https://github.com/OpenIDC/pyoidc/releases/tag/1.2.1 advisory pihak ketiga
• https://github.com/OpenIDC/pyoidc/security/advisories/GHSA-4fjv-pmhg-3rfg advisory pihak ketiga