CVE-2021-36370
First published: Mon Aug 30 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Jason Alexander phNNTP | <=4.8.26 |
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Reference Links
- https://docs.ssh-mitm.at/CVE-2021-36370.html
- https://github.com/MidnightCommander/mc/blob/5c1d3c55dd15356ec7d079084d904b7b0fd58d3e/src/vfs/sftpfs/connection.c#L484
- https://github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.c
- https://mail.gnome.org/archives/mc-devel/2021-August/msg00008.html
- https://midnight-commander.org/
- https://sourceforge.net/projects/mcwin32/files/
Frequently Asked Questions
What is the severity of CVE-2021-36370?
The severity of CVE-2021-36370 is classified as medium due to the potential for man-in-the-middle attacks.
How do I fix CVE-2021-36370?
To fix CVE-2021-36370, you should update Midnight Commander to a version beyond 4.8.26 that includes proper fingerprint verification.
What vulnerability does CVE-2021-36370 expose?
CVE-2021-36370 exposes users to the risk of connecting to unverified SFTP servers, which could lead to unauthorized access.
Can CVE-2021-36370 affect all versions of Midnight Commander?
CVE-2021-36370 specifically affects versions of Midnight Commander up to and including 4.8.26.
What is the impact of not addressing CVE-2021-36370?
Failing to address CVE-2021-36370 can result in sensitive data being compromised due to unverified connections to potentially malicious servers.
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