CVE-2021-36370
HIGHCVSS 7.5/10EPSS 2.22%
Last modified
CVE-2021-36370 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.22% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Midnight-Commander | Midnight Commander | <= 4.8.26 |
References
- https://docs.ssh-mitm.at/CVE-2021-36370.htmlExploit, Third Party Advisory
- https://github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.cExploit, Third Party Advisory
- https://mail.gnome.org/archives/mc-devel/2021-August/msg00008.htmlRelease Notes, Third Party Advisory
- https://midnight-commander.org/Vendor Advisory
- https://sourceforge.net/projects/mcwin32/files/Product, Third Party Advisory
- https://docs.ssh-mitm.at/CVE-2021-36370.htmlExploit, Third Party Advisory
- https://github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.cExploit, Third Party Advisory
- https://mail.gnome.org/archives/mc-devel/2021-August/msg00008.htmlRelease Notes, Third Party Advisory
- https://midnight-commander.org/Vendor Advisory
- https://sourceforge.net/projects/mcwin32/files/Product, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2021-36370?
CVE-2021-36370 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.22% probability of exploitation in the next 30 days.
How do I fix CVE-2021-36370?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-36370?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST