Auth bypass in Midnight-Commander Midnight Commander
CVE-2021-36370
An issue was discovered in Midnight Commander through 4.8.26. When establishing an SFTP connection, the fingerprint of the server is neither checked nor displayed. As a result, a user connects to the server without the ability to verify its authenticity.
Vulnerability class: Broken Authentication
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.020 (80.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.c (Exploit, Third Party Advisory)
- github.com/MidnightCommander/mc/blob/5c1d3c55dd15356ec7d079084d904b7b0fd58d3e/s… (Exploit, Third Party Advisory)
- sourceforge.net/projects/mcwin32/files/ (Product, Third Party Advisory)
- midnight-commander.org/ (Vendor Advisory)
- docs.ssh-mitm.at/CVE-2021-36370.html (Exploit, Third Party Advisory)
- mail.gnome.org/archives/mc-devel/2021-August/msg00008.html (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-36370?
- CVE-2021-36370 is a high-severity vulnerability in Midnight-Commander Midnight Commander, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-08-30.
- How severe is CVE-2021-36370?
- High severity. CVSS v3 base score is 7.5 out of 10.