要点
- CVE-2020-26244 は oic, python openid connect (python openid connect project) に影響する深刻度「中」 (CVSS 6.8) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.83%（全脆弱性の 57.8% より高い）。
- 対処：1.2.1 以降に更新してください。
概要
Impact
- Client implementations using this library
Issues
- The IdToken signature algorithm was not checked automatically, but only if the expected algorithm was passed in as a kwarg.
- JWA
none algorithm was allowed in all flows.
oic.consumer.Consumer.parse_authz returns an unverified IdToken. The verification of the token was left to the discretion of the implementator.iat claim was not checked for sanity (i.e. it could be in the future)
Patches
- IdToken signature is now always checked.
- JWA
none algorithm is now allowed only if using the response_type code
- IdToken verification is now done automatically.
iat claim is now checked for sanity.
NVD の説明
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.
これらの製品をお使いですか？サイトをスキャンして、脆弱なバージョンが公開されていないか確認しましょう。
無料でサイトをスキャン