CVE-2024-39894

7.5 HIGH

Published: July 02, 2024 Modified: November 04, 2025

Description

OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.openwall.com/lists/oss-security/2024/07/03/6

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2024/07/23/4

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2024/07/23/6

Source: cve@mitre.org

http://www.openwall.com/lists/oss-security/2024/07/28/3

Source: cve@mitre.org

https://crzphil.github.io/posts/ssh-obfuscation-bypass/

Source: cve@mitre.org

https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html

Source: cve@mitre.org

https://news.ycombinator.com/item?id=41508530

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20240712-0004/

Source: cve@mitre.org

https://www.openssh.com/txt/release-9.8

Source: cve@mitre.org

https://www.openwall.com/lists/oss-security/2024/07/02/1

Source: cve@mitre.org

http://seclists.org/fulldisclosure/2024/Sep/33