CVE-2021-36368
3.7
LOW
CVSS 3.1
EPSS 1.7%
描述
An issue was discovered in OpenSSH before 8.9. If a client is using public-key authentication with agent forwarding but without -oLogLevel=verbose, and an attacker has silently modified the server to support the None authentication option, then the user cannot determine whether FIDO authentication is going to confirm that the user wishes to connect to that server, or that the user wishes to allow that server to connect to a different server on the user's behalf. NOTE: the vendor's position is "this is not an authentication bypass, since nothing is being bypassed.
如何修補 CVE-2021-36368
要修補 CVE-2021-36368,請將受影響套件升級到下列已修補版本。
- —升級至 8.9_p1-r0 或更新版本
- —未列出修補版本
CVE-2021-36368 正在被利用嗎?
低 — EPSS 為 1.7%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 8.9_p1-r0
- from 0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |