CVE-2021-36370
published 2021-08-30CVE-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…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
2.22%
80.4th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | mc | < mc 3:4.8.27-1 (bookworm) | mc 3:4.8.27-1 (bookworm) |
| midnight-commander | midnight_commander | <= 4.8.26 | — |
| msrc | cbl2_mc_4.8.27-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_mc_4.8.27-1_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv7.5HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
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Ubuntu
Midnight Commander vulnerability
vendor_ubuntu·2022-08-09
CVE-2021-36370 Midnight Commander vulnerability
Title: Midnight Commander vulnerability
Summary: Midnight Commander could be made to access a spoofed server instance.
It was discovered that Midnight Commander would not check server fingerprints
when establishing an SFTP connection. If a remote attacker were able to intercept
communications this flaw could be exploited to impersonate the SFTP server.
Instructions: In general, a standard system update will make all the necessary changes.
Microsoft
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 se
vendor_msrc·2021-08-10·CVSS 7.5
CVE-2021-36370 [HIGH] CWE-287 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 se
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to a
Debian
CVE-2021-36370: mc - An issue was discovered in Midnight Commander through 4.8.26. When establishing ...
vendor_debian·2021·CVSS 7.5
CVE-2021-36370 [HIGH] CVE-2021-36370: mc - An issue was discovered in Midnight Commander through 4.8.26. When establishing ...
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.
Scope: local
bookworm: resolved (fixed in 3:4.8.27-1)
bullseye: open
forky: resolved (fixed in 3:4.8.27-1)
sid: resolved (fixed in 3:4.8.27-1)
trixie: resolved (fixed in 3:4.8.27-1)
GHSA
GHSA-j8px-qjm3-fx72: An issue was discovered in Midnight Commander through 4
ghsa_unreviewed·2022-05-24
CVE-2021-36370 [HIGH] CWE-287 GHSA-j8px-qjm3-fx72: An issue was discovered in Midnight Commander through 4
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.
OSV
CVE-2021-36370: An issue was discovered in Midnight Commander through 4
osv·2021-08-30·CVSS 7.5
CVE-2021-36370 [HIGH] CVE-2021-36370: An issue was discovered in Midnight Commander through 4
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://docs.ssh-mitm.at/CVE-2021-36370.htmlhttps://github.com/MidnightCommander/mc/blob/5c1d3c55dd15356ec7d079084d904b7b0fd58d3e/src/vfs/sftpfs/connection.c#L484https://github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.chttps://mail.gnome.org/archives/mc-devel/2021-August/msg00008.htmlhttps://midnight-commander.org/https://sourceforge.net/projects/mcwin32/files/https://docs.ssh-mitm.at/CVE-2021-36370.htmlhttps://github.com/MidnightCommander/mc/blob/5c1d3c55dd15356ec7d079084d904b7b0fd58d3e/src/vfs/sftpfs/connection.c#L484https://github.com/MidnightCommander/mc/blob/master/src/vfs/sftpfs/connection.chttps://mail.gnome.org/archives/mc-devel/2021-August/msg00008.htmlhttps://midnight-commander.org/https://sourceforge.net/projects/mcwin32/files/
2021-08-30
Published