FreeBSD update for openssh



Published: 2023-06-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-28531
CWE-ID CWE-255
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Operating systems & Components / Operating system

Vendor FreeBSD Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Credentials management

EUVDB-ID: #VU73775

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28531

CWE-ID: CWE-255 - Credentials Management

Exploit availability: No

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

the vulnerability exists due to a logic error in ssh-add when adding smartcard keys to ssh-agent with the per-hop destination constraints. As a result, the keys are added without constraints.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FreeBSD: 12.4

External links

http://www.freebsd.org/security/advisories/FreeBSD-SA-23:05.openssh.asc


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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