Auth bypass in Dropbear_ssh_project Dropbear_ssh
CVE-2021-36369
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 atta…
Vulnerability class: Broken Authentication
EPSS: 0.013 (68.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Dropbear_ssh_project Dropbear_ssh
- Debian Debian_linux — versions 10.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Third Party Advisory, Release Notes)
- cve@mitre.org (Third Party Advisory, Release Notes)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-36369?
- CVE-2021-36369 is a high-severity vulnerability in Dropbear_ssh_project Dropbear_ssh, classified under Improper Authentication. CVSS score: 7.5/10. Published 2022-10-12.
- How severe is CVE-2021-36369?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-36369 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.