CVE-2021-36369
dropbear - security update
7.5
HIGH
CVSS 3.1
EPSS 1.3%
描述
An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 tokens or SSH-Askpass. Thus, it allows an attacker to abuse a forwarded agent for logging on to another server unnoticed.
如何修補 CVE-2021-36369
要修補 CVE-2021-36369,請將受影響套件升級到下列已修補版本。
- —升級至 2020.81-3+deb11u1 或更新版本
- —升級至 2018.76-5+deb10u2 或更新版本
CVE-2021-36369 正在被利用嗎?
低 — EPSS 為 1.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 2020.81-3+deb11u1
- from 0, < 2018.76-5+deb10u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |