CVE-2022-23540

MEDIUM6.4EPSS 0.02%

jsonwebtoken vulnerable to signature validation bypass due to insecure default algorithm in jwt.verify()

發布日:2022/12/22修改日:2025/2/13
也稱為:GHSA-qwph-4952-7xr6

描述

# Overview In versions <=8.5.1 of jsonwebtoken library, lack of algorithm definition and a falsy secret or key in the `jwt.verify()` function can lead to signature validation bypass due to defaulting to the `none` algorithm for signature verification. # Am I affected? You will be affected if all the following are true in the `jwt.verify()` function: - a token with no signature is received - no algorithms are specified - a falsy (e.g. null, false, undefined) secret or key is passed # How do I fix it? Update to version 9.0.0 which removes the default support for the none algorithm in the `jwt.verify()` method. # Will the fix impact my users? There will be no impact, if you update to version 9.0.0 and you don’t need to allow for the `none` algorithm. If you need 'none' algorithm, you have to explicitly specify that in `jwt.verify()` options.

受影響套件(1)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM6.4CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L

參考連結(5)