Vulnerability identifier: #VU93514

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-39894

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
OpenSSH
Server applications / Remote management servers, RDP, SSH

Vendor: OpenSSH

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due a logic error in ObscureKeystrokeTiming implementation within the ssh client. A local user with ability to passively observe SSH sessions can recover sensitive input, such as password for the su or sudo programs.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenSSH: 9.5p1 - 9.7p1

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External links
http://www.openssh.com/releasenotes.html#9.8p1

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.