CVE-2021-36369
HIGH7.5EPSS 0.21%dropbear - security update
發布日:2022/10/12修改日:2026/4/28
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.
受影響套件(2)
- Debian/dropbearfrom 0, < 2020.81-3+deb11u1
- Debian/dropbearfrom 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 |