CVE-2022-29217
Key confusion through non-blocklisted public key formats
描述
PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT library requires that the application chooses what algorithms are supported. The application can specify `jwt.algorithms.get_default_algorithms()` to get support for all algorithms, or specify a single algorithm. The issue is not that big as `algorithms=jwt.algorithms.get_default_algorithms()` has to be used. Users should upgrade to v2.4.0 to receive a patch for this issue. As a workaround, always be explicit with the algorithms that are accepted and expected when decoding.
如何修補 CVE-2022-29217
要修補 CVE-2022-29217,請將受影響套件升級到下列已修補版本。
- —升級至 2.4.0-1 或更新版本
- —升級至 2.4.0 或更新版本
- —升級至 9c528670c455b8d948aff95ed50e22940d1ad3fc 或更新版本
CVE-2022-29217 正在被利用嗎?
低 — EPSS 為 1.2%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.4.0-1
- >= 1.5.0, < 2.4.0
- from 0, < 9c528670c455b8d948aff95ed50e22940d1ad3fc | >= 1.5.0, < 2.4.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |