VDB
DEBIAN-CVE-2021-36369
DEBIAN-CVE-2021-36369
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | dropbear | 0, 0, 0 |
| Debian:14 | dropbear | 0, 0, 0 |
| Debian:13 | dropbear | 0, 0, 0 |
| Debian:11 | dropbear | 0, 2020.81-3, 2020.81-3 |
Timeline
- Oct 12, 2022 CVE Published
- Apr 28, 2026 CVE Updated